Re: [SLUG] Email line length
On 11 July 2014 08:04, Peter Chubb pe...@chubb.wattle.id.au wrote: At the moment it's only a few senders, plus many spammers (which I ignore anyay, after reporting them) Peter C it was a bit of an effort with Gmail on Chrome (on Windows), but I refrained from top posting (but left the HTML) ;-) Do you really report all scammers, or only special ones that are particularly evil or obnoxious? And who do you report them to? When I'm aboard I occasionally trawl through spam mail headers to ascertain the malevolent mail relays or sources, but despite numerous mails to ab...@dumbcompany.com or the like I think I have only ever had one thank you for me being a net vigilante, Even my work's CERT or the AUS-CERT, Fair TRading, seem relatively non-interested unless it is a serious attempt at extortion or fraud. Regards, Martin -- SLUG - Sydney Linux User's Group Mailing List - http://slug.org.au/ Subscription info and FAQs: http://slug.org.au/faq/mailinglists.html
Re: [SLUG] Happy 20th birthday Debian!
The announcements posts are always nostalgic (From https://groups.google.com/forum/#!msg/comp.os.linux.development/Md3Modzg5TU/xty88y5OLaMJ ) :- Fellow Linuxers, This is just to announce the imminent completion of a brand-new Linux release, which I'm calling the Debian Linux Release. This is a release that I have put together basically from scratch; in other words, I didn't simply make some changes to SLS and call it a new release. I was inspired to put together this release after running SLS and generally being dissatisfied with much of it, and after much altering of SLS I decided that it would be easier to start from scratch. The base system is now virtually complete (though I'm still looking around to make sure that I grabbed the most recent sources for everything), and I'd like to get some feedback before I add the fancy stuff. Please note that this release is not yet completed and may not be for several more weeks; however, I thought I'd post now to perhaps draw a few people out of the woodwork. Specifically, I'm looking for: 1) someone who will eventually be willing to allow me to upload the release to their anonymous ftp-site. Please contact me. Be warned that it will be rather large :) 2) comments, suggestions, advice, etc. from the Linux community. This is your chance to suggest specific packages, series, or anything you'd like to see part of the final release. Don't assume that because a package is in SLS that it will necessarily be included in the Debian release! Things like ls and cat are a given, but if there's anything that's in SLS that you couldn't live without please let me know! I'd also like suggestions for specific features for the release. For example, a friend of mine here suggested that undesired packages should be selected BEFORE the installation procedure begins so the installer doesn't have to babysit the installation. Suggestions along that line are also welcomed. What will make this release better than SLS? This: 1) Debian will be sleeker and slimmer. No more multiple binaries and manpages. 2) Debian will contain the most up-to-date of everything. The system will be easy to keep up-to-date with a 'upgrading' script in the base system which will allow complete integration of upgrade packages. 3) Debian will contain a installation procedure that doesn't need to be babysat; simply install the basedisk, copy the distribution disks to the harddrive, answer some question about what packages you want or don't want installed, and let the machine install the release while you do more interesting things. 4) Debian will contain a system setup procedure that will attempt to setup and configure everything from fstab to Xconfig. 5) Debian will contain a menu system that WORKS... menu-driven package installation and upgrading utility, menu-driven system setup, menu-driven help system, and menu-driven system administration. 6) Debian will make Linux easier for users who don't have access to the Internet. Currently, users are stuck with whatever comes with SLS. Non-Internet users will have the option of receiving periodic upgrade packages to apply to their system. They will also have the option of selecting from a huge library of additional packages that will not be included in the base system. This library will contain packages like the S3 X-server, nethack and Seyon; basically packages that you and I can ftp but non-netters cannot access. 7) Debian will be extensively documented (more than just a few READMEs). 8) As I put together Debian, I am keeping a meticulous record of where I got everything. This will allow the end-user to not only know where to get the source, but whether or not the most recent version is a part of Debian. This record will help to keep the Debian release as up-to-date as possible. 9) Lots more, but I'll detail later... Anyway, I'll provide more specifics in a week or so after I receive enough replies. Please, all replies by mail. I'll post a followup. If you wish to discuss this in the newsgroup, please don't turn it into a flamewar. :) Until later, Ian -- Ian MurdockInternet: imur...@shell.portal.com The Linux Warehouse Please mail me for more information on the status of the Debian Linux Release. From https://groups.google.com/forum/#!msg/comp.os.linux.development/Md3Modzg5TU/xty88y5OLaMJ Regards, Martin martinvisse...@gmail.com On 16 August 2013
[SLUG] 20 years of using Linux at home
Well today pretty much marks 20 years since I've used Linux at home. I'd been using Linux at since late '92, mainly as a way to cheaply repurpose some older PCs into X-Windows terminals for use in our UNIX development environment. I'd sold a bunch of shares from my employer, and decided to reward myself with a shiny 33MHz '486 powered PC. From memory the system cost me $3150. At the same time I bought my wife a nice upright Yamaha U3 piano (about 25 years old at the time). You can guess which one we still have, and which is well and truly buried underground. ;-) I specifically bought the PC with the intent on dual-booting Windows 3.1 and Linux. I did buy Borland C++ for the PC, but I really was more interested in playing around in Linux. Anyway here is the post to USEnet I made 20 years ago today. Regards, Martin martinvisse...@gmail.com https://groups.google.com/d/msg/comp.os.linux/diR_GdOPV5Y/ejo0whA3PcoJ Path:gmd.de!newsserver.jvnc.net!yale.edu!nigel.msen.com!sdd.hp.com! elroy.jpl.nasa.gov!swrinde!cs.utexas.edu!zaphod.mps.ohio-state.edu !wupost!uunet!munnari.oz.au!bruce.cs.monash.edu.au!merlin! iwsd01.itwol.bhp.com.au!eedwsa.itwol.bhp.com.au!visser Newsgroups: comp.os.linux Subject: Help installing Linux.(doinstall fails) Message-ID: 1993apr5.105557@iwsd01.itwol.bhp.com.au From: vis...@eedwsa.itwol.bhp.com.au(Martin Visser) Date: 5 Apr 93 10:55:56 +1000 Sender: vis...@eedwsa.itwol.bhp.com.au(Martin Vesa (32-bit)) Distribution: world Nntp-Posting-Host: eedwsa.itwol.bhp.com.au Lines: 37 Hi, I,ve tried to install the SLS base system 99p6. I partitioned my 210 Maxtor drive to half DOS and then added a 15M /dev/hda2 (type 81 Linux,Minix) and 10M /dev/hda3 (type 83 Linux swap). After writing to the partition table and rebooting, I did a mkfs /dev/hda2 15504; mkswap /dev/hda3 4096; swapon /dev/hda3. After then running doinstall things seemed OK until it tried to start installing a2,a3 and a4. The system only looked at the disks for about a millisecond and then prompted me to insert the next one ( I was thinking , Boy! this installation is quick). Finally I got the prompt for formatted disk to make a boot disk. Thinking, I ahd finished, I attempted to boot this disk to no avail. Of course during doinstall I got messages such as mv: command not found, rm: command not found and so forth. I am guessing that my /dev/hada2 is not mounting and hence the file system is not being transferred. I have been trying to dissassemble doinstall as most erros seem to be redirected to /dev/null. One error I noted on booting is WD8013 not found at 280 . Can't the driver find my disk controller? I have a TMC 486/33 motherboard with a VESA IDE controller. Linux seems to be able access the disk because the partioning worked and mkfs -c works the disk out. Please help me out , I would love to get Linux up and running. -- Regards, Martin /\/\ : Martin Visser - Electrical / Software Engineer / / /\: Engineering Technology Department / / / \ : BHP Steel - Slab and Plate Products Division / / / /\ \ : P.O. Box 1854 Wollongong NSW 2500 AUSTRALIA \ \/ / / / : Phone+61-42-75-7522 ext. 6207 \ / / / : Fax +61-42-75-7038 \/\/\/: E-mail vis...@itwol.bhp.com.au -- SLUG - Sydney Linux User's Group Mailing List - http://slug.org.au/ Subscription info and FAQs: http://slug.org.au/faq/mailinglists.html
Re: [SLUG] 20 years of using Linux at home
I started out downloading floppies at work - as I only had I think 9600bps to OzEmail. I think all of BHP at that had a 384kbps link (via our research labs in Melbourne). Of course you'd get to the 13th floppy at home and find it not working. SLS become Slackware. The Y distro was probably Yggdrasil - I might have tried it once or twice. I then started ordering those InfoMagic and Walnut Creek CDs (after I had bought a multimedia upgrade - a 2xSpeed CD-ROM and SoundBlaster card for about $1000). I bought the PC with 4MB of RAM, but fairly quickly maxxed it out with 8M!! Eventually it got a 486 100Mhz CPU. (The promised Pentium Overdrive chip never surfaced, or was too dear something). 4 years later we moved to a Pentium 233MHz system. Fun times. Regards, Martin martinvisse...@gmail.com On 6 April 2013 12:24, Michael Chesterton che...@chesterton.id.au wrote: On Sat, Apr 6, 2013 at 9:54 AM, Heracles herac...@iprimus.com.au wrote: -BEGIN PGP SIGNED MESSAGE- Hash: SHA256 Ah! The early days! I must have started a little later than you - either late 92 or early 93 - as my version was on 11 5 1/4 inch floppies. I had to boot on disk 11 and then install using the other 10 floppies. The install was awkward but what a sense of achievement when you got it working. My system was a 386SX16 with 1 MB RAM. I was so impressed with the speed of Linux I have used nothing else since. Heracles My first install was in about 95-96, there was some distro starting with y that i have no idea how to pronounce or spell, I think slackware was my first install, but I ordered a midnight magic cd and tried them all. A colleague recommended debian and I switch to that. Full time linux at home was pretty quick afterwards, and full time at work as a desktop was probably sometime in the naughties. I ran lotus notes under wine, which ran really well. -- SLUG - Sydney Linux User's Group Mailing List - http://slug.org.au/ Subscription info and FAQs: http://slug.org.au/faq/mailinglists.html -- SLUG - Sydney Linux User's Group Mailing List - http://slug.org.au/ Subscription info and FAQs: http://slug.org.au/faq/mailinglists.html
Re: [SLUG] script to analyse syslog in realtime
I wrote this Perl script for use in a project where I had get an
understanding of the rate RADIUS requests coming in. I impressed myself (as
a very lapsed programmer) that I figured out how to (a) write a SIGnal
handler and (b) put POD documentation in the file. The most basic usage is
simply :-
tail -f /var/log/message | lookfor -lookfor string1,string2
output looks like :-
$ sudo tail -f /var/log/messages | ./lookfor --lookfor OK,denied,401
Un
Total Count
===
OK: Count:1 ( Delta: 0 Last: 0.0ps Peak: 0.2ps Avg: 0.0ps )
denied: Count:2 ( Delta: 0 Last: 0.0ps Peak: 0.4ps Avg: 0.1ps )
401 Un: Count:1 ( Delta: 0 Last: 0.0ps Peak: 0.2ps Avg: 0.0ps )
#!/usr/bin/perl
# Created by Martin Visser - Version 1.0 - 2003
use Getopt::Long;
use Pod::Usage;
$eachone = 1;
$interval = 5;
$avgintervals = 6;
$label = ;
$clear_opt = 1;
$delta_opt = 1;
@lookfor = ();
#@lookfor = ('Access-Request','Accounting-Request', 'Request Accepted',
'Request Rejected');
$result = GetOptions (lookfor=s = \@lookfor,
interval=i= \$interval,
label=s = \$label,
clear! = \$clear_opt,
delta! = \$delta_opt,
help|man|? = \$help);
pod2usage(1) if $help;
@lookfor = split(/,/ , join(',', @lookfor));
sub set_alarm {
$SIG{'ALRM'} = \interim_dump;
alarm $interval;
}
sub set_quit {
$SIG{'QUIT'} = \final_dump;
$SIG{'INT'} = \final_dump;
}
sub dump_lookfor {
foreach $lookfor (@lookfor) {
$delta = $count{$lookfor} - $lastcount{$lookfor};
$tps = $delta / $interval;
$peaktps{$lookfor} = ($tps $peaktps{$lookfor}) ? $tps :
$peaktps{$lookfor};
$avgtps{$lookfor} = $avgtps{$lookfor} * ($avgintervals -
1)/($avgintervals) + $tps / $avgintervals;
printf %s: Count:%d ( Delta: %d Last: %.1fps Peak: %.1fps Avg:
%.1fps
)\n,$lookfor,$count{$lookfor},$delta,$tps,$peaktps{$lookfor},$avgtps{$lookfor};
# print $lookfor: Count:$count{$lookfor} ( Delta: $delta Last: ${tps}
ps Peak: $peaktps{$lookfor} ps Avg: $avgtps{$lookfor} )\n;
$lastcount{$lookfor} = $count{$lookfor};
}
print \n;
}
sub interim_dump {
if ($clear_opt) {system(clear);}
if ($label ne ) { print $label\n;}
print Interim Count\n=\n;
dump_lookfor;
alarm $interval;
}
sub final_dump {
if ($clear_opt) {system(clear);}
if ($label ne ) { print $label\n;}
print Total Count\n===\n;
dump_lookfor;
exit;
}
sub zero_count {
foreach $lookfor (@lookfor) {
$count{$lookfor} = 0;
$lastcount{$lookfor} = 0;
$peaktps{$lookfor} = 0;
$avgtps{$lookfor} = 0;
}
}
zero_count;
set_quit;
set_alarm;
interim_dump;
while(){
foreach $lookfor (@lookfor) {
if (/$lookfor/) {
$count{$lookfor}++;
}
}
}
final_dump;
__END__
=head1 NAME
lookfor
=head1 SYNOPSIS
lookfor -interval int -lookfor string,string...
Example: lookfor -int 30 -lookfor 'Access-Request','Access-Response'
Reads from stdin, and display counts (and other stats) for matched strings
written by Martin Visser martinvisser99ATgmail.com
=head1 OPTIONS
=over 8
=item B-help or -?
Print this help message and exit.
=item B-interval Itime in secs
Specify how often the displayed statistics are refreshed
(Default: 5)
=item B-lookfor Istring,string,string
Specify the strings that lookfor is to calculate stats on. (note it
currently counts and number of matches of the string on the line as 1
(Default: *)
=head1 DESCRIPTION1
Reads from stdin, and display counts (and other stats) for matched strings
=cut
Regards, Martin
martinvisse...@gmail.com
On 14 February 2013 11:48, Chris Barnes chris.p.bar...@gmail.com wrote:
Hi everyone,
my firewall logs everything to a syslog server - new connections,
terminated connections, etc
basically what im trying to do is analyse the syslog in realtime looking
for a specific string which indicates a new connection has been
established, and to count the number of occurrences of that string to get
an idea of how many connections per minute im getting for a particular
internet service so that I can graph it.
An example of the significant line in syslog im looking for is:
Feb 14 11:42:52 10.1.1.1 : Feb 14 11:19:47 EDT: %PIX-session-6-302015:
Built inbound UDP connection 3523357 for Outside:124.178.41.91/123 (
124.178.41.91/123) to svrdmz:NTP/123 (NTP/123)
I can use the following to watch the log for the specific event
tail -f /var/log/syslog | grep to svrdmz:NTP/123 (NTP/123)
But I cant figure out a way to programatically count how many of these
events occur per minute.
any suggestions?
--
Kind Regards,
Christopher Barnes
e. chris.p.bar...@gmail.com
--
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--
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Re: [SLUG] Linux midi interface
I have a Tascam US-122 that works great in Linux (it does MIDI as well as audio). I think this is discontinued now - I imagine the newer version have probably gained support in Linux as well. (Google is your friend) Regards, Martin martinvisse...@gmail.com On 8 February 2013 21:12, Ben Donohue donoh...@icafe.com.au wrote: Hi all, I'm after a USB to MIDI interface that works with Linux. I'd prefer Linux Mint as I'm getting used to this distro but in any case I'm after buying one that works with Linux... as in has drivers etc. End goal is to have the keyboard connected to a laptop running a flavour of Linux and run music learning / composing / sequencing / etc software on it. Anyone care to add some thoughts / experience on what works. Thanks, Ben -- SLUG - Sydney Linux User's Group Mailing List - http://slug.org.au/ Subscription info and FAQs: http://slug.org.au/faq/**mailinglists.htmlhttp://slug.org.au/faq/mailinglists.html -- SLUG - Sydney Linux User's Group Mailing List - http://slug.org.au/ Subscription info and FAQs: http://slug.org.au/faq/mailinglists.html
Re: [SLUG] Tuning Systems and Energy Use (Sys Admin Roles and Responsibilities)
Further to this and Michael's comment, by automating and centrally coordinating the trains you could potentially save a lot of power overall a,d also things like peak demand. Knowing what is optimum acceleration to meet timetable demands, as well as avoiding red lights can save a lot. Even by staggering acceleration periods across the network could reduce peak demand and hence restrict demand for infrastructure. (Same goes for regenerative braking). The antithesis of this is the http://en.wikipedia.org/wiki/TV_pickup phenomenon noted in the UK when the punters put on the kettle for a cuppa all at the same during sporting matches and such. Regards, Martin martinvisse...@gmail.com On 20 October 2012 12:42, James Linder j...@tigger.ws wrote: On 20/10/2012, at 9:00 AM, slug-requ...@slug.org.au wrote: Its primary goal is safety though, not efficiency. I want to add a linux angle, but can't think of one. The powers-that-be-here don't even want you to know what can actually be achieved with Linux. In Tokyo they have a crazy robot train (crazy for a sydney person) that runs into town and back. Anyway, you can sit where the driver would normally be. It's fully automated, and therefore, without doubt consumes less power than having a human being driving the train. I say this because an industrial pc having about 5w energy consumption. No metal is needed for the drivers compartment, or aircon, so there's definitely an energy saving there. The trains use a Linux RTOS like QNX. Which is very popular over there. The Japanese systems are very safe. They look at it the other way around in that when there are deaths, it's caused by human error. Not the machines. I tend to agree with their perspective. The issue is about Jobs. The Japanese don't mind having 10x Linux Engineers in preference to 10x Train Drivers. In Sydney, sadly, they seemingly would prefer to have 10x train drivers and less Linux Engineers than have the balance the other way around. The assertion is that Linux Engineers are dangerous and train-drivers and people that ride bicycles are not. We have to accept our backwards looking leaders. That's just how it is. It is linux and it is interesting ... Earthquake's generate seismic waves, the fast ones are detected and STOP the trains before damage to infrastructure occurs and the train is hurlled to it's doom. Cute! James-- SLUG - Sydney Linux User's Group Mailing List - http://slug.org.au/ Subscription info and FAQs: http://slug.org.au/faq/mailinglists.html -- SLUG - Sydney Linux User's Group Mailing List - http://slug.org.au/ Subscription info and FAQs: http://slug.org.au/faq/mailinglists.html
Re: [SLUG] flakky USB connection to Phone storage
I've never felt much love for those type of cables. What you gain in compactness, you lose in reliability, in my experience. They tend to use thinner gauge wire (to enable the smaller) bending radius, which either limit current (well, increase voltage drop) or just break through fatigue. Also the ratchets are, well, ratsh*t. Finally, I have even seen (have) Ethernet type cables in this holland-blind format that seem to have pairs that aren't twisted, so I don't feel like risking my Gigabit bits on them with the expected crosstalk. Regards, Martin martinvisse...@gmail.com On 20 March 2012 23:09, Voytek Eymont li...@sbt.net.au wrote: Marghanita da Cruz marghan...@ramin.com.au wrote: :-( seems it wasn't the cable after all. Talking cables, I'm using Milkshake? brand retractable with DUO? combo micro/mini USB, really great idea, micro is on 'sliding rail', I use it with probably all my USB micro our mini things. I'm not sure it charges my old L2 Motorola, but charges everything else. Marghanita da Cruz wrote: -- Swyped from my Motrix with K-9 Mail. Please excuse my brevity. -- SLUG - Sydney Linux User's Group Mailing List - http://slug.org.au/ Subscription info and FAQs: http://slug.org.au/faq/mailinglists.html -- SLUG - Sydney Linux User's Group Mailing List - http://slug.org.au/ Subscription info and FAQs: http://slug.org.au/faq/mailinglists.html
[SLUG] DJVu Samsung Citrus
Marghanita, Just guessing here, but I think pretty much all phones built this century are WAP capable. As such, I would think a minimal HTML file would work. Try something like HTML PRE Hello, world! This is some plain text. /PRE /HTML plopped into helloworld.html Regards, Martin martinvisse...@gmail.com 2012/3/14 Marghanita da Cruz marghan...@ramin.com.au My U9 phone snapped in half on saturday and I am now the owner of a Samsung Citrus/Metro/GT-C3520 http://ramin.com.au/linux/**samsung-citrus.shtmlhttp://ramin.com.au/linux/samsung-citrus.shtml I am trying to figure out what text format the phone can display/file extension it will recognise - without much success. The Samsung website suggests I download the manual - which I expect is the same as the printed one, which came with the phone. However, it did offer the manual in two formats PDF and DjVu (complete with option to download viewer). This intrigued me further: DjVu is supported by a number of multi-format document viewers and e-book reader software on Linux (Okular, Evince) .. Format licensing DjVu is an open file format.[4] The file format specification is published as well as source code for the reference library.[4] The original authors distribute an open source implementation named DjVuLibre under the GNU General Public License. The ownership rights to the commercial development of the encoding software have been transferred to different companies over the years, including ATT, LizardTech, Celartem and Caminova. http://en.wikipedia.org/wiki/**DjVu http://en.wikipedia.org/wiki/DjVu Though I am still at a loss of how to create a text file, that is recognised and can be viewed on the phone. Any comments? Marghanita -- Marghanita da Cruz Ramin Communications (Sydney) Website: http://ramin.com.au Phone:(+612) 0414-869202 -- SLUG - Sydney Linux User's Group Mailing List - http://slug.org.au/ Subscription info and FAQs: http://slug.org.au/faq/**mailinglists.htmlhttp://slug.org.au/faq/mailinglists.html -- SLUG - Sydney Linux User's Group Mailing List - http://slug.org.au/ Subscription info and FAQs: http://slug.org.au/faq/mailinglists.html
: [SLUG] Re: Raspberry Pi
Doesn't a SoC board, with a few USB ports, ethernet, video and audio out, just become a PC with the addition of a USB hub providing fanout to a keyboard, mouse and a bit more storage? Just like the mobile device manufacturers (to wit Motorola with Atrix and Asus with Transformer ) want us to think, the distinct category of PC is fast disappearing. Regards, Martin martinvisse...@gmail.com On 2 March 2012 07:57, Edwin Humphries edw...@netsensecomputers.com.auwrote: Sorry to be so ignorant, but I haven't heard of the Raspberry Pi before. The posts seems to indicate it as a mini PC; however, it seems to be just a SoC board? NetSense Computers logoRegards, Edwin Humphries Mobile: 0419 233 051 NetSense Computers (Ironstone Technology Pty Ltd) 79 Barney St (P. O. Box 423), Kiama, NSW, 2533 Phone: +61 (0)2 4233 2285 Fax: +61 (0)2 4233 2781 Web: http://www.netsensecomputers.**com.auhttp://www.netsensecomputers.com.au -- This email is intended for the named addressee/s only and may contain confidential or privileged information. If you are not a named addressee please delete it and notify the sender. -- /At every moment he beholdeth a wondrous world, a new creation, and goeth from astonishment to astonishment, and is lost in awe at the works of the Lord of Oneness./ Baha'u'llah, The Seven Valleys ./.. humans are interesting. With all the wonders there are in the Universe, they invented boredom./ Terry Pratchet, Hogfather /The most beautiful thing we can experience is the mysterious. It is the source of all true art and all science. He to whom this emotion is a stranger, who can no longer pause to wonder and stand rapt in awe, is as good as dead: his eyes are closed./ Albert Einstein /Stuff your eyes with wonder ... live as if you'd drop dead in ten seconds. See the world. It's more fantastic than any dream made or paid for in factories./ Ray Bradbury On 2/03/2012 3:40 AM, Richard Ibbotson wrote: On Thursday 01 March 2012 16:20:15 Geoffrey Cowling wrote: Will Microsoft be able to lock this down? In some ways this is a good question. As far I understand it M$ attempts to lock down the Arm platform in Europe will fail due to EU law. Not allowed to do what they want to do. Might be that under U.S. law they can do something ? Not sure about the latter. Whatever else happens they will certainly use their marketing power to drive out GNU/Linux from the ARM CPU in the way that they did from the Asus EeePC. Only Linux fans will know that Linux exists. In the U.K. the Pi is aimed at the educational market. Which is owned by Microsoft under direction from Whitehall. Say n'more ?...cough Winduhs advert... http://www.youtube.com/watch?**v=jT3_UCm1A5Ihttp://www.youtube.com/watch?v=jT3_UCm1A5I Best winduhs advert out there ;) -- SLUG - Sydney Linux User's Group Mailing List - http://slug.org.au/ Subscription info and FAQs: http://slug.org.au/faq/mailinglists.html -- SLUG - Sydney Linux User's Group Mailing List - http://slug.org.au/ Subscription info and FAQs: http://slug.org.au/faq/mailinglists.html
Re: [SLUG] Reputable notebook repairer?
HP will be able to arrange for repair of your laptop, regardless of warranty state - though it won't be free. (HP uses 3rd party authorised repairer here in Australia). I think the standard open it up and look charge is around $150 which if you go ahead with the repair is absorbed as part of the total cost. Unfortunately though I don't think they will only replace components not repair them (viz. with a soldering iron) so you are likely to be up for a new system board (motherboard). While having Linux would be a hindrance for them, which is not unreasonable, if you provide it to them with a harddisk they should be able to boot it with a disk of their choosing. I have done this in the past and haven't had an issue. I imagine a lot of people with broken machines are not keen to hand over their data to a repairer, so it won't be an uncommon situation. Regards, Martin martinvisse...@gmail.com On 12 October 2011 13:56, meryl gnu...@aromagardens.com.au wrote: Hi all, I suspect either my ethernet port has failed or perhaps it's the networking chipset on my motherboard. I contacted HP who were useless because 1. my notebook is just out of waranty and 2. I'm a 'naughty' Linux user (tisk, tisk!). So can anyone recommend a reputable notebook repairer in Sydney / / Northern Beaches / Nth Shore area that could troubleshoot and fix my problem. I'd rather not patch it up with a PCMCIA ethernet card if I can avoid it. cheers, Meryl -- SLUG - Sydney Linux User's Group Mailing List - http://slug.org.au/ Subscription info and FAQs: http://slug.org.au/faq/mailinglists.html -- SLUG - Sydney Linux User's Group Mailing List - http://slug.org.au/ Subscription info and FAQs: http://slug.org.au/faq/mailinglists.html
Re: [SLUG] IP cams behind NAT/ADSL
Voytek, Looking at a manual ( http://support.2wire.com/index.php?page=viewarticle=765 not sure if it's the same model) you should be able to do what you want if your cameras are say 192.168.1.101, 192.168.1.102, 192.168.1.103 you need to setup a separate port forward for each, or application. So you might create WebCam1 with Protocol TCP, Port 80 and Map to Host port 8101, WebCam2 with Protocol TCP, Port 80, Map to Host Port 8102, and so on. (As in Page 40). Then as on Page 38 you apply that Firewall Application to each computer) - so apply Application WebCam1 to 192.168.1.101, and so on. The if your external IP address is say 202.1.2.3 then if you browse to http://202.1.2.3:8101 you would see camera 1, http://202.1.2.3:8102 camera 2 and so on Bear in mind anyone can also connect to your cameras if they can determine the mapping (through a program like nmap). So you have the security protection of whatever the camera does or doesn't have. Also you will need to confirm that the camera only uses port 80, and doesn't say stream video through another port, or maybe even redirect to port 443 for login (if it has this). If you are concerned about security of doing this port forwarding, then you might be better off using ssh on your inside host to do the appropriate port forwarding as well. Regards, Martin martinvisse...@gmail.com On 30 August 2011 20:12, Voytek Eymont li...@sbt.net.au wrote: I have several IP cams behind NAT on 192.168.1.x LAN that I would like to access remotely using an app on Android or a browser, so I guess I need to forward port 80 from each IP, I've tried to do that in 2wire ADSL router, but haven't managed (probably doing it wrongly). I have a Linux machine on the LAN that I can ssh to, what the best way to achieve this? Port forward cameras to Linux box and expose that through 2wire? -- Voytek -- SLUG - Sydney Linux User's Group Mailing List - http://slug.org.au/ Subscription info and FAQs: http://slug.org.au/faq/mailinglists.html -- SLUG - Sydney Linux User's Group Mailing List - http://slug.org.au/ Subscription info and FAQs: http://slug.org.au/faq/mailinglists.html
Re: [SLUG] IP cams behind NAT/ADSL
Voytek, I don't see from the above where the cam10 application is mapped from port 8010 to port 80 on the cam10 device. That might be which nmap is showing cam10 as filtered. Regards, Martin martinvisse...@gmail.com On 31 August 2011 15:32, Voytek Eymont li...@sbt.net.au wrote: On Wed, August 31, 2011 8:50 am, Martin Visser wrote: if your cameras are say 192.168.1.101, 192.168.1.102, 192.168.1.103 you need to setup a separate port forward for each, or application. So you might create WebCam1 with Protocol TCP, Port 80 and Map to Host port 8101, Martin, thanks, one of my configs was incorrect (but the other one wasn't, [2wire, 2way bet]). OK, 2wire shows: Device Allowed ApplicationsApplication Type Protocol Port Public IP cacti Web Server - TCP 80 111.222.333.444 SSH Server - TCP 22 111.222.333.444 cam10 cam10 - TCP 8010111.222.333.444 do I need to do anything in Apache conf on cacti above ? when I nmap I get: Starting Nmap 5.00 ( http://nmap.org ) at 2011-08-31 14:57 EST Interesting ports on 111.222.333.444: Not shown: 995 closed ports PORTSTATESERVICE 22/tcp open ssh 80/tcp open http 139/tcp filtered netbios-ssn 179/tcp filtered bgp 445/tcp filtered microsoft-ds Nmap done: 1 IP address (1 host up) scanned in 48.59 seconds at one point whilst fiddling with different variants I noticed this: --- Not shown: 994 closed ports PORT STATESERVICE 22/tcp open ssh 80/tcp open http 139/tcp filtered netbios-ssn 179/tcp filtered bgp 445/tcp filtered microsoft-ds 8010/tcp filtered xmpp --- maybe.. whilst I was attempting to connect from browser..? -- Voytek -- SLUG - Sydney Linux User's Group Mailing List - http://slug.org.au/ Subscription info and FAQs: http://slug.org.au/faq/mailinglists.html -- SLUG - Sydney Linux User's Group Mailing List - http://slug.org.au/ Subscription info and FAQs: http://slug.org.au/faq/mailinglists.html
Re: [SLUG] US DOD Distro
Marghanita, Looks like an interesting distro, and obviously there is a good use case for military personnel needing to use untrusted PCs on a untrusted network. What I find curious though, from just a quick observation, is that I couldn't see how they can ensure their customers that you have the genuine article. While they are publishing MD5 hashes for the ISO, your only test that they are genuine is that you have used the .mil URL to access them. They haven't put these behind a SSL protected web-site or other chain-of-trust that gives you assurance that the hashes or ISOs have become compromised. (In other words if someone is doing either a DNS or HTTP man-in-the-middle attack you wouldn't know). (And of course, I'm wondering if anyone has looked into this in detail to determine if it phone's home ;-) ) Regards, Martin martinvisse...@gmail.com 2011/8/3 Marghanita da Cruz marghan...@ramin.com.au 15 June 2011: LPS-Remote Access was certified by AFNIC to connect to the GIG for general telecommuting use. ... LPS differs from traditional operating systems in that it isn't continually patched. LPS is designed to run from read-only media and without any persistent storage. Any malware that might infect a computer can only run within that session. A user can improve security by rebooting between sessions, or when about to undertake a sensitive transaction. For example, boot LPS immediately before performing any online banking transactions. LPS should also be rebooted immediately after visiting any risky web sites, or when the user has reason to suspect malware might have been loaded. In any event, rebooting when idle is an effective strategy to ensure a clean computing session. LPS is updated on a regular basis (at least quarterly patch and maintenance releases). Update to the latest versions to have the latest protection. To get started, download the LPS-Public ISO image and burn it to a CD. Read the Quick Start Guide for more information. http://www.spi.dod.mil/**lipose.htm http://www.spi.dod.mil/lipose.htm -- Marghanita da Cruz http://ramin.com.au Tel: 0414-869202 -- SLUG - Sydney Linux User's Group Mailing List - http://slug.org.au/ Subscription info and FAQs: http://slug.org.au/faq/**mailinglists.htmlhttp://slug.org.au/faq/mailinglists.html -- SLUG - Sydney Linux User's Group Mailing List - http://slug.org.au/ Subscription info and FAQs: http://slug.org.au/faq/mailinglists.html
Re: [SLUG] self reboot solving ?
As James indicated, start looking at /var/log/messages and /var/log/syslog, which might show bad things occurring before the apocalyptic kernel panic (if that is what is happening). Netxt, though I haven't done this sort of thing for a while, you can arrange for processes and/or the kernel to dump core into the file system which can be analysed with various utilities. From what I have read, if you set up the kernel crashdump facility, in the event of a kernel panic another crashdump kernel can start and write a snapshot of the runtime kernel to disk. Have a look at this for a starting point. https://wiki.ubuntu.com/Kernel/CrashdumpRecipe However as James has pointed out it could be a host issue, in the way it presents the virtual hardware to your guest. If the host does do something bad you just may not see it (and the guest-based crashdump I have mentioned above won't help). Your provider could be able to provide some logs that would indicate at least the host sees concerning the untimely reincarnation of your guest ;-) Regards, Martin martinvisse...@gmail.com -- SLUG - Sydney Linux User's Group Mailing List - http://slug.org.au/ Subscription info and FAQs: http://slug.org.au/faq/mailinglists.html
[SLUG] Results from AGM and EGM?
I'm only an occasional SLUGger, but am interested in the outcome of last Friday's meeting. Anyone care to post a summary? Regards, Martin martinvisse...@gmail.com -- SLUG - Sydney Linux User's Group Mailing List - http://slug.org.au/ Subscription info and FAQs: http://slug.org.au/faq/mailinglists.html
[SLUG] Re: [chat] Does a PoE switch need direct access to a PoE device?
Plugging a non-POE switch into a POE switch will work fine - but not forward on any power. In simple terms, a POE switch will test, through various means, whether it is safe to apply the 48V power to the device that is connecting to it. So your non-POE switch will not receive any useful power from the POE switch as it won't meet those prerequisites. It also does not have capability to pass on power to devices down stream. (Obviously all Ethernet devices need to provide power when they transmit, but only at signal levels, not able to power devices in the POE sense.) Regards, Martin martinvisse...@gmail.com On 21 February 2011 18:15, Simon Males s...@sime.net.au wrote: Hi Slug chatters I'm wearing a network engineers hat as of hat and I'm tempted to install a PoE switch as we expand to power PoE supported phones. Some phones will have direct access to the PoE switch. But others will be connected via other intermediary switches. Will an intermediary non PoE switch blow up/block/pass on the power from the 'master' PoE switch? If the former, I guess daisy chaining PoE switches is relatively safe? -- Simon Males -- SLUG - Sydney Linux User Group Mailing List - http://slug.org.au/ Subscription info and FAQs: http://slug.org.au/faq/mailinglists.html -- SLUG - Sydney Linux User's Group Mailing List - http://slug.org.au/ Subscription info and FAQs: http://slug.org.au/faq/mailinglists.html
Re: Subject: [SLUG] change to linux and google chrome
On Sat, Oct 9, 2010 at 6:30 PM, Brett Mahar brett.ma...@gmail.com wrote: You might like to check out SW Iron instead of Chrome, it is the same thing but without the many Google tracking devices built-in: http://www.srware.net/en/software_srware_iron_chrome_vs_iron.php -- You just gotta love that SRware are obviously down on Google tracking yet are quite willing to take their money by offering Google Ads on both the side and bottom of their page. Regards, Martin martinvisse...@gmail.com -- SLUG - Sydney Linux User's Group Mailing List - http://slug.org.au/ Subscription info and FAQs: http://slug.org.au/faq/mailinglists.html
Re: [SLUG] enabling snmp on NIC ?
I think the latest releases of Net-SNMP have been tightened up security wise. By default on Ubuntu, SNMP access is limit to the system description information. I suspect the same problem is occuring to you on Centos. In the line below from /etc/snmp/snmpd.conf to enable read-only access to all of the available SNMP MIB objects compiled in, you need to change associated security name for the public community from paranoid to read-only, which is what I have done here, by commenting the line with paranoid and uncommenting readonly:- # First, map the community name (COMMUNITY) into a security name # (local and mynetwork, depending on where the request is coming # from): # sec.name source community #com2sec paranoid default public com2sec readonly default public #com2sec readwrite default private So the before and after result from an snmpwalk on the interface part of the MIB tree is below. First with paranoid for public:- $ snmpwalk -v 1 -c public localhost interface End of MIB And now with readonly for public (after doing a service snmpd restart in between) :- $ snmpwalk -v 1 -c public localhost interface IF-MIB::ifNumber.0 = INTEGER: 7 IF-MIB::ifIndex.1 = INTEGER: 1 IF-MIB::ifIndex.2 = INTEGER: 2 IF-MIB::ifIndex.3 = INTEGER: 3 IF-MIB::ifIndex.4 = INTEGER: 4 IF-MIB::ifIndex.5 = INTEGER: 5 IF-MIB::ifIndex.6 = INTEGER: 6 IF-MIB::ifIndex.8 = INTEGER: 8 IF-MIB::ifDescr.1 = STRING: lo IF-MIB::ifDescr.2 = STRING: eth1 IF-MIB::ifDescr.3 = STRING: eth2 IF-MIB::ifDescr.4 = STRING: br0 IF-MIB::ifDescr.5 = STRING: ip6tnl0 IF-MIB::ifDescr.6 = STRING: ano-linode IF-MIB::ifDescr.8 = STRING: tap0 IF-MIB::ifType.1 = INTEGER: softwareLoopback(24) IF-MIB::ifType.2 = INTEGER: ethernetCsmacd(6) IF-MIB::ifType.3 = INTEGER: ethernetCsmacd(6) IF-MIB::ifType.4 = INTEGER: ethernetCsmacd(6) IF-MIB::ifType.5 = INTEGER: tunnel(131) IF-MIB::ifType.6 = INTEGER: tunnel(131) IF-MIB::ifType.8 = INTEGER: ethernetCsmacd(6) IF-MIB::ifMtu.1 = INTEGER: 16436 IF-MIB::ifMtu.2 = INTEGER: 1500 IF-MIB::ifMtu.3 = INTEGER: 1500 IF-MIB::ifMtu.4 = INTEGER: 1500 IF-MIB::ifMtu.5 = INTEGER: 1460 IF-MIB::ifMtu.6 = INTEGER: 1360 IF-MIB::ifMtu.8 = INTEGER: 1500 IF-MIB::ifSpeed.1 = Gauge32: 1000 IF-MIB::ifSpeed.2 = Gauge32: 1000 IF-MIB::ifSpeed.3 = Gauge32: 1000 IF-MIB::ifSpeed.4 = Gauge32: 1000 IF-MIB::ifSpeed.5 = Gauge32: 0 IF-MIB::ifSpeed.6 = Gauge32: 0 IF-MIB::ifSpeed.8 = Gauge32: 1000 - 8- Regards, Martin Regards, Martin martinvisse...@gmail.com On Fri, Sep 17, 2010 at 12:19 PM, Voytek Eymont li...@sbt.net.au wrote: On Thu, September 16, 2010 9:42 pm, Amit Dor-Shifer wrote: Is netsnmp built with ifmib support? If you can't snmpwalk ifmib, I'm not sure cacti group will be the right place to look for answers. Rather the SNMP crowd should be consulted. Amit, thanks, yes, it seems there is no support for the ifmib I kinda perused a bunch of docs on netsnmp pages, with nothing that really helped me, as this is more of a hobby project than a real need, I'll be happy with polling NICs of the switch/router and NAS, which is what really matters for this, at this time; the Linux' box sole purpose is to run cacti and ntpd, I'll look at it again at some future time thanks again for all the help, guys -- Voytek -- SLUG - Sydney Linux User's Group Mailing List - http://slug.org.au/ Subscription info and FAQs: http://slug.org.au/faq/mailinglists.html -- SLUG - Sydney Linux User's Group Mailing List - http://slug.org.au/ Subscription info and FAQs: http://slug.org.au/faq/mailinglists.html
Re: [SLUG] flashing motherboard with no floppy drive
It looks like according to this all you need to make sure is that a barebones DOS session is running. According to this, http://www.pcstats.com/articleview.cfm?articleid=1605page=4 , if you boot a DRDOS CD that should work. Maybe be even using DOSEMU in Linux might work? Regards, Martin martinvisse...@gmail.com On Sun, Aug 29, 2010 at 6:48 PM, Jonathan jhhum...@bigpond.com wrote: BTW, just realised I typed the motherboard code wrong, its actually: GA-7VT600 1394 cheers Jon On Sun, 29 Aug 2010 12:22:05 pm Martin Visser wrote: Just wondering in what way the BIOS is corrupted. I managed to create a customised Award BIOS that simply wouldn't work after I had fiddled with it. My impression is that if the BIOS not found the fall-back is to load the boot-block from a floppy. That did happen in my case. It could be that you BIOS is still half-working so the fall-back doesn't occur. No guarantees, but you might get joy can follow a procedure such as the attached to temporarily disabled the BIOS (basically by shorting a pair of pins) by forcing a checksum error. Following is an example I found by googling for short BIOS pins - http://www.motherboards.org/forums/viewtopic.php?t=76346 (I don't think a USB connected floppy drive will work with this procedure). Regards, Martin martinvisse...@gmail.com On Sat, Aug 28, 2010 at 9:55 AM, Jonathan jhhum...@bigpond.com wrote: Hi All, I have an old gigabyte motherboard GA-7VT300 1394 whose BIOS has become a bit corrupted. I need to reflash the bios, but the floppy drive doesn't work. I've trued pluging in other floppy drives all to no avail. Does anyone know how to resolve this? Currently using version F4 f the bios. Thanks Jon -- SLUG - Sydney Linux User's Group Mailing List - http://slug.org.au/ Subscription info and FAQs: http://slug.org.au/faq/mailinglists.html -- SLUG - Sydney Linux User's Group Mailing List - http://slug.org.au/ Subscription info and FAQs: http://slug.org.au/faq/mailinglists.html
Re: [SLUG] flashing motherboard with no floppy drive
Ah, yes. The checksum might be on the CMOS NVRAM settings rather than the BIOS executable code. If the BIOS considers the settings invalid (by comparing to some stored checksum - also stored in the CMOS NVRAM) then it might failing back to what you are seeing. This can be confirmed by defaulting the BIOS settings (making sure you have recorded any system specific settings that are important, such as drive geometry) and rebooting. If you keep system power on between reboots and the problem does not reoccur, yet does have problems when your system gets powered down (and the CMOS NVRAM needs to rely on the battery) then it could well be your battery is at the end of its useful life. (Usually the first sign is the system clock no longer operates when powered down). Regards, Martin martinvisse...@gmail.com On Mon, Aug 30, 2010 at 8:59 AM, Jake Anderson ya...@vapourforge.comwrote: On 29/08/10 18:48, Jonathan wrote: BTW, just realised I typed the motherboard code wrong, its actually: GA-7VT600 1394 cheers Jon Just checking, its not the CMOS battery gone flat causing your problems is it? It sounds similar in symptoms. -- SLUG - Sydney Linux User's Group Mailing List - http://slug.org.au/ Subscription info and FAQs: http://slug.org.au/faq/mailinglists.html
Re: [SLUG] flashing motherboard with no floppy drive
Just wondering in what way the BIOS is corrupted. I managed to create a customised Award BIOS that simply wouldn't work after I had fiddled with it. My impression is that if the BIOS not found the fall-back is to load the boot-block from a floppy. That did happen in my case. It could be that you BIOS is still half-working so the fall-back doesn't occur. No guarantees, but you might get joy can follow a procedure such as the attached to temporarily disabled the BIOS (basically by shorting a pair of pins) by forcing a checksum error. Following is an example I found by googling for short BIOS pins - http://www.motherboards.org/forums/viewtopic.php?t=76346 (I don't think a USB connected floppy drive will work with this procedure). Regards, Martin martinvisse...@gmail.com On Sat, Aug 28, 2010 at 9:55 AM, Jonathan jhhum...@bigpond.com wrote: Hi All, I have an old gigabyte motherboard GA-7VT300 1394 whose BIOS has become a bit corrupted. I need to reflash the bios, but the floppy drive doesn't work. I've trued pluging in other floppy drives all to no avail. Does anyone know how to resolve this? Currently using version F4 f the bios. Thanks Jon -- SLUG - Sydney Linux User's Group Mailing List - http://slug.org.au/ Subscription info and FAQs: http://slug.org.au/faq/mailinglists.html -- SLUG - Sydney Linux User's Group Mailing List - http://slug.org.au/ Subscription info and FAQs: http://slug.org.au/faq/mailinglists.html
Re: [SLUG] A distro which recognises Wi-fi on Asus eee 1005p? -- thanks for suggestions
To the community. Jon's experience probably really demonstrates why Linux isn't going to go mainstream anytime soon. While I would say 90% of people are going to have hardware that just works with the most current release of most distros, it is the 10% that have issues that really stings. Surely this hurdle needs to be overcome. With the likes of Canonical, Redhat, Novell and the like wanting this to work surely there is a need for some sort of integration centre that hardware vendors can submit their gadgets for driver development assistance, and qualification? I know that they do do some of these things and a lot of problems like video and suspend/resume seem a lot more predicable. Or is this simply never going to happen and we just need to put up with it considering the effect of aggressive competition and the need to get new stuff out there all the time. Regards, Martin martinvisse...@gmail.com On Tue, Aug 10, 2010 at 3:48 PM, Jon Jermey jonjer...@gmail.com wrote: Puppeee did the trick! The eee 1005p is now talking to the world in Linux via wireless. Thanks, Kenneth! Jon. On 09/08/10 11:51, Kenneth Caldwell wrote: You might also investigate Puppeee-1.0 released on August 7th. http://puppylinux.org/news/releases/puppeee-10-for-the-eee-is-released/ -- SLUG - Sydney Linux User's Group Mailing List - http://slug.org.au/ Subscription info and FAQs: http://slug.org.au/faq/mailinglists.html -- SLUG - Sydney Linux User's Group Mailing List - http://slug.org.au/ Subscription info and FAQs: http://slug.org.au/faq/mailinglists.html
Re: [SLUG] Error in Time() command
Pretty much based on the knowledge that the MCU program counter is clocked on a 16MHz crystal (according to http://en.wikipedia.org/wiki/Quartz_clock they are generally good for 6 parts per million for standard grade crystals, whatever that is). You can use this in a number of ways. If you program it using a standard loop to read inputs, calculate and write out to say a LCD display, you should have a loop-length of known number of CPU cycles. (This is quite possible with a microcontroller as everything is in memory and as long you aren't waiting for random DMA interrupts should be quite feasible. A general purpose CPU running a mega operating system with lots of peripherals would make this task pretty much impossible). Another option is to use the built-in timer/counters (one 8 bit and one 16 bit are available) on the AVR ATmega MCU. Again clocked against the same crystal, and using a configurable frequency divider mechanism. And finally there are various dedicated real-time chips, such as DS1307, which combined with a crystal (usually 32.768KHz) can be easily interfaced if needed. These chips tend to be human-scale timers so you might have to count lots of repetitions of your loop under test and do the maths to get an average loop time (possibly limiting its usefulness). Regards, Martin martinvisse...@gmail.com On Wed, May 26, 2010 at 3:55 PM, Nick Andrew n...@nick-andrew.net wrote: On Wed, May 26, 2010 at 01:53:27PM +1000, Martin Visser wrote: (And if you don't have a scope or freq. meter) a suitably programmed Arduino or similar microcontroller could do this fairly easily for you - probably with better than 0.01% precision. How do we know the Arduino is so precise? :-) Nick. -- SLUG - Sydney Linux User's Group Mailing List - http://slug.org.au/ Subscription info and FAQs: http://slug.org.au/faq/mailinglists.html
Re: [SLUG] Error in Time() command
Risking totally going off-topic but analog thermistors are so old-school! ;-) Check out the DS18B20. Same size as transistor (TO-220) but is digitally (one-wire serial) connected. No need for all that analog stuff and curve-fitting. These are uniquely address, thus polled if need be (dozens on the one bus) and can be metres from the microcontroller. (Well I have one on the end of 30 metre roll of alarm cable). Sure a few bucks versus a few cents, but wow. Regards, Martin martinvisse...@gmail.com On Wed, May 26, 2010 at 11:08 PM, Nick Andrew n...@nick-andrew.net wrote: On Wed, May 26, 2010 at 05:52:59PM +1000, Martin Visser wrote: Pretty much based on the knowledge that the MCU program counter is clocked on a 16MHz crystal (according to http://en.wikipedia.org/wiki/Quartz_clock they are generally good for 6 parts per million for standard grade crystals, whatever that is). Ok, that's reasonably accurate. If you program it using a standard loop to read inputs, calculate and write out to say a LCD display, you should have a loop-length of known number of CPU cycles. (This is quite possible with a microcontroller as everything is in memory and as long you aren't waiting for random DMA interrupts should be quite feasible. A general purpose CPU running a mega operating system with lots of peripherals would make this task pretty much impossible). That's what I was thinking - apart from wanting to be sure that the timebase is sufficiently accurate. Another option is to use the built-in timer/counters (one 8 bit and one 16 bit are available) on the AVR ATmega MCU. Again clocked against the same crystal, and using a configurable frequency divider mechanism. The arduino language/library includes a millis() function which returns the number of msec of uptime; it's a 32-bit unsigned counter so it overflows after 49.7 days. There's also a microsecond counter with a 4 or 8 uS resolution depending on the CPU clock speed. And finally there are various dedicated real-time chips, such as DS1307, which combined with a crystal (usually 32.768KHz) can be easily interfaced if needed. These chips tend to be human-scale timers so you might have to count lots of repetitions of your loop under test and do the maths to get an average loop time (possibly limiting its usefulness). Depending of course on the timescales being measured either the milli- or microsecond counter should be adequate. Reasons for looping several times would be the counter resolution isn't high enough and the program being tested takes a varying time to run. If run on a desktop operating system, there's a lot of activity going on in the background so looping many times and taking an average is, I think, a necessity. I have an Arduino which I'll be using for temperature monitoring among other things. While running the Thermistor2 program I noticed the reported temperature jumped around almost at random. I did some analysis and a lot of that noise is coming from the ADC itself: I wired it up to fixed value resistor dividers (instead of a resistor and thermistor) and monitored the ADC value twice a second for several days. It turns out the ADC value is approximately Normally distributed with a standard deviation of about 0.7 x LSB. From what I have read this is out of spec and it may be due to noise in the input voltage (USB powered) and can also be reduced by adding a capacitor to the circuit (which I haven't done). I modified the code to take 10 readings at a time and average them; this reduces the standard deviation considerably. So I'm looking forward to hooking it back up to the thermistor and running the revised temperature program. It should show better than 0.1 degree C precision, however it will still need to be calibrated to be at all accurate. Nick. -- PGP Key ID = 0x418487E7 http://www.nick-andrew.net/ PGP Key fingerprint = B3ED 6894 8E49 1770 C24A 67E3 6266 6EB9 4184 87E7 -- SLUG - Sydney Linux User's Group Mailing List - http://slug.org.au/ Subscription info and FAQs: http://slug.org.au/faq/mailinglists.html
Re: [SLUG] Error in Time() command
Dion, As a soon-to-graduate EE you might consider using a tool such as oscilloscope or frequency counter to help more objectively measure timing. A simple thing to do would be to have your code section run in a repeating loop. At the end of the loop toggle a physical output - say the DTR line on a serial port, or even the Num Lock LED on you keyboard. Connection up your 'scope or meter to that physical interface and measure the frequency. I'm pretty sure these modern time-domain measuring devices are going to have some nice crystal-locked output that should have better than 0.1% or better resolution. Just compare that to your output from time() and see how you go. Regards, Martin martinvisse...@gmail.com On Mon, May 24, 2010 at 1:45 PM, Dion Curchin tenz...@iinet.net.au wrote: On 24/05/2010, at 8:47 AM, Glen Turner wrote: On Mon, 2010-05-24 at 09:02 +1000, Peter Chubb wrote: Actually it doesn't give the whole answer. Wow, thanks heaps Peter. Thank you all. Particularly Peter. That is truly an amazing depth of information to digest. tenzero: so there are 1000 (CONFIG_HZ) samples per second. For each sample your program is one of: not scheduled, running in user, running in system, or has yielded the processor due to a blocking event such as I/O or an explicit sleep(). It is possible that all processes yield and you get scheduled twice in one sample -- I'd note that, and then ignore the possibility. Run an infinite loop in another process if it worries you. That bastard will never yield, and so your process will never be scheduled twice in a tick. If you have multiple CPUs, bind one infinite loop to each CPU. In reality, unless your results are odd, this is a lot of work to exclude an unlikely case. With luck, your program is such that you can use strace to count the blocking events on a single run of your program. Then pretend that the scheduler tick misses every one of these. So if you program has 10 blocking events and runs for 1.00 second then there result has a bound of [1.00, 1.01]. Including the reporting error from the API [0.99, 1.02]. You will save yourself a world of statistics if your better program's range falls completely under the worse program's range. In this case it is. The hardware device dramatically outperforms the software and the error in the hardware device is half a clock cycle or 20ns while the error in the software is in the ms scale. Mostly for completeness, I simply wanted to discuss the error in the software measurement. In your Appendix you acknowledge Peter's contribution with a footnote (eg, Thanks to Dr Peter Chubb of UNSW for explaining the sampling nature of the Linux task accounting). In general, you don't cite these sort of e-mail discussions since they are all care and no responsibility discussions rather than a considered opinion ready for peer review. Of course, where the posting becomes a part of the record (such Linus's announcement of Linux) then you reference. You will see from this discussion the common research hassle that determining the error of an experiment is usually more work than determining the result. Indeed, that's exactly how I'm finding this. Best of luck with your studies, Glen Thanks. All things going to plan, I should graduate in about a month. This is for my final year project in Electronic Engineering. Again, thanks for everyones help. Cheers. D. -- SLUG - Sydney Linux User's Group Mailing List - http://slug.org.au/ Subscription info and FAQs: http://slug.org.au/faq/mailinglists.html -- SLUG - Sydney Linux User's Group Mailing List - http://slug.org.au/ Subscription info and FAQs: http://slug.org.au/faq/mailinglists.html
Re: [SLUG] Error in Time() command
(And if you don't have a scope or freq. meter) a suitably programmed Arduino or similar microcontroller could do this fairly easily for you - probably with better than 0.01% precision. Regards, Martin martinvisse...@gmail.com On Wed, May 26, 2010 at 10:53 AM, Dion tenz...@iinet.net.au wrote: Martin, That is a very good idea. Thank you! What makes this especially helpful and I'm anoyed I didn't think of it myself, is that an empty app or loop with only the output pulse included, can be used to approximate the overhead of the rest of the system. Effectively giving a potentially more precise measure of the speed of my actual code. Cheers. Dion. On 25/05/10 3:11 PM, Martin Visser wrote: Dion, As a soon-to-graduate EE you might consider using a tool such as oscilloscope or frequency counter to help more objectively measure timing. A simple thing to do would be to have your code section run in a repeating loop. At the end of the loop toggle a physical output - say the DTR line on a serial port, or even the Num Lock LED on you keyboard. Connection up your 'scope or meter to that physical interface and measure the frequency. I'm pretty sure these modern time-domain measuring devices are going to have some nice crystal-locked output that should have better than 0.1% or better resolution. Just compare that to your output from time() and see how you go. Regards, Martin martinvisse...@gmail.com mailto:martinvisse...@gmail.com -- Never ascribe to malice that which may adequately be explained by incompetence. - Napoleon Bonaparte -- Never ascribe to malice that which may adequately be explained by incompetence. - Napoleon Bonaparte -- SLUG - Sydney Linux User's Group Mailing List - http://slug.org.au/ Subscription info and FAQs: http://slug.org.au/faq/mailinglists.html -- SLUG - Sydney Linux User's Group Mailing List - http://slug.org.au/ Subscription info and FAQs: http://slug.org.au/faq/mailinglists.html
Re: [SLUG] Using Three networks 3Spot application
From the looks of the user guide, it is creating an adhoc (computer-to-computer) network. From the error message you included, 3Spot: Connection failed: could not contact the wireless access point it seems you have told Ubuntu it is a an access-point network. I suspect if you change the wireless type on your 'puter to adhoc then it should just work - as it seems the the phone acts as a DHCP server and should hand out the relevant setttings, but only once the physical wireless connection is working. (For reference DNS domain and search domain are only relevant if you don't specify the fully-qualified domain name, FQDN, when say you enter a URL in your browser. For instance if you worked for mycompany.com.au you might want to add this as the DNS domain. That way you could just type http://www; and your 'puter would search for www.mycompany.com.au as it's query. search domain are just additional domains that it would append in the order you declared) martinvisse...@gmail.com On Thu, May 20, 2010 at 1:04 AM, elliott-brennan m...@elliott-brennan.id.au wrote: Hi all, Has anyone else had experience with the new Three mobile networks 3Spot application? It allows you to tether your 'puter to your mobile. You download the application and determine security settings etc then switch it on and off you go - just connect to it as if it's an access point. Works in cough Windows7 easily but I cannot for the life of me get it going in Ubuntu 9.10 (dual booting Lenovo X200). Each time it tells me that it cannot obtain an IP address. There are options to set the IP address manually - I used the one which Windows used. However this requires using a static IP address. So: IP 192.168.2.2 Netmask 255.255.255.0 gateway is auto set t 192.168.2.1 I then also need Static DNS details: DNS Domain Search Domain DNS1, 2 and 3 So at this point I'm buggered. I think I have the correct DNS1 and 2 details (taken from the Windows connection) BUT am stuck with the DNS Domain and Search Domain options. I've tried various options for these (eg. calling Planet3 as the Three network name is called) but I merely get a 3Spot: Connection failed: could not contact the wireless access point message. If I leave it to connect using DHCP it searches for an IP address but finally fails, telling me that it failed to obtain an IP address - this takes an age, with the machine searching for several minutes. Any help at this point would be most appreciated. Thanks, Patrick -- Linux - you use it everyday -- SLUG - Sydney Linux User's Group Mailing List - http://slug.org.au/ Subscription info and FAQs: http://slug.org.au/faq/mailinglists.html -- SLUG - Sydney Linux User's Group Mailing List - http://slug.org.au/ Subscription info and FAQs: http://slug.org.au/faq/mailinglists.html
Re: [SLUG] iptables netfilter TCP timeouts
I haven't done a heck of a lot in anger with tuning iptables/netfilter based firewalls I know that on a Cisco ASA (formerly know as PIX) firewall the default TCP established time-out is 1 hour and half-closed (which I think is FIN wait) is 10 minutes. These timers/counters are always a compromise between making sure legitimate traffic is still allowed to work without needing application keep-alive hacks, and make sure badly behaved or malicious sources don't consume resources in the stateful connection tables. So that said, unless you are seeing something that looks like resources are being consumed badly I would leave it. (And as you have probably figured out these probably aren't likely to be connected to delay issues) Regards, Martin martinvisse...@gmail.com On Tue, May 4, 2010 at 12:35 PM, Kyle k...@attitia.com wrote: I've been investigating some delays in my net connection recently and have become aware of the std tcp timeouts set in sysctl by netfilter's conntrack module. Namely;  ip_conntrack_tcp_timeout_established    5 days ip_conntrack_tcp_timeout_fin_wait      2 min's ip_conntrack_tcp_timeout_max_retrans   300 ip_conntrack_tcp_timeout_syn_sent     2 min's ip_conntrack_tcp_timeout_time_wait     2 min's And it strikes me that these appear to be considerably long given the present day state of connectivity and general speed of connections. Especially, the 5 day timeout on an established connection. Isn't that just a recipe for leaving a no longer wanted connection open well beyond it's desirable lifespan? Can anyone offer up some form of opinion as to why I shouldn't reduce these values a bit (especially the established timeout) pls? For example; ip_conntrack_tcp_timeout_established    1 day ip_conntrack_tcp_timeout_fin_wait      2 min's  (might leave this or possible to end up with unnecessary established conn's. waiting for timeout) ip_conntrack_tcp_timeout_max_retrans   300    (Can see why this might be set high, but question it's genuine necessity) ip_conntrack_tcp_timeout_syn_sent     1 min ip_conntrack_tcp_timeout_time_wait     1 min Am I about to completely screw things up by doing this? -- Kind Regards Kyle -- SLUG - Sydney Linux User's Group Mailing List - http://slug.org.au/ Subscription info and FAQs: http://slug.org.au/faq/mailinglists.html -- SLUG - Sydney Linux User's Group Mailing List - http://slug.org.au/ Subscription info and FAQs: http://slug.org.au/faq/mailinglists.html
Re: [SLUG] THE PIA wallet
Interestingly, I just installed Ubuntu 10.04 Beta 2 and if you don't specify a password when asked to store your WPA2 key, it warns you it is storing it insecurely, but then you are done. Regards, Martin martinvisse...@gmail.com On Thu, Apr 15, 2010 at 7:08 PM, jam j...@tigger.ws wrote: Guys I've just setup an eeepc for my wife that runs karmic notebook remix Minor fun-n-games to get the wireless to work, but all sorted except this PIA If anybody has wise words it'll save me ages ... Autologin and I get invited to enter the wallet password to enable the wireless. How do I do away with that, to have nm automatically start? (yes I googled. yes tried libpam-keyring all else fails I'll build pam_keyring) Thanks James -- SLUG - Sydney Linux User's Group Mailing List - http://slug.org.au/ Subscription info and FAQs: http://slug.org.au/faq/mailinglists.html -- SLUG - Sydney Linux User's Group Mailing List - http://slug.org.au/ Subscription info and FAQs: http://slug.org.au/faq/mailinglists.html
Re: [SLUG] Which bank doesn't use Linux servers?
I have to agree with Daniel. shutting them down is the safe option. Having a service unavailable through the wee hours is far preferable then say having to undo a whole of transactions that inadvertantly get run twice (think of all the automated payment systems scheduled to run at certain times). A bank even has to consider the connections to other financial institutions and whether their applications behave properly. Also you could almost guarantee that while the core transaction processing is on a old-fashioned mainfram, the will more than likely have one of pretty much every platform doing some part of their business applications. ( I actually worked on a project that was going to bring in a new Java on UNIX platform a few years ago, unfortunately it was put on ice 6 months in). Regards, Martin martinvisse...@gmail.com On Thu, Apr 1, 2010 at 3:39 PM, Daniel Pittman dan...@rimspace.net wrote: Jake Anderson ya...@vapourforge.com writes: Jim Donovan wrote: I noticed the following on the Commonwealth netbank site this morning: NetBank, Mobile Banking and Telephone Banking will be unavailable between 2am and 5am EST on Sunday 4 April 2010 to allow for the changeover from Australian Eastern Daylight Savings time to Australian Eastern Standard time. Please take this timeframe into consideration when completing your banking. For updates during this change, please visit: www.commbank.com.au/update. Please press NEXT to access NetBank. Assuming it wasn't an April Fool joke, perhaps it means their databases use local time and the logic won't permit transactions to be entered out of order such as might appear to be if one happened just before the changeover time and another less than an hour later. How quaint! I remember hearing once that Commonwealth Bank servers were always rebooted on Sundays so they'd be less likely to go down during the week. Odds are its more to do with their internal applications which are probably written on cobalt running on CP/M machines or something equally modern. Your probably lucky they even know time zones exist ;-. My money would be on the very boring option, paranoia: If you shut down as many of these systems as possible during the change over, then those systems *can't* go wrong — because they are doing nothing. If you leave them running then, hey, maybe something breaks. So, if you want to look at the cost/benefit analysis the cost of a few hours outage overnight is pretty low, especially if you can schedule it well in advance, and even more so if you can do some other maintenance work at the same time. Meanwhile, no risk of things going wrong during the change-over, which is always a huge PR fiasco even if nothing really bad happens. Daniel If it was my call, I would probably do the same thing. Way too many developers get simple things like this day has no 2:30AM or this day has two 2:00AMs wrong. -- ✣ Daniel Pittman✉ dan...@rimspace.net☎ +61 401 155 707 ♽ made with 100 percent post-consumer electrons -- SLUG - Sydney Linux User's Group Mailing List - http://slug.org.au/ Subscription info and FAQs: http://slug.org.au/faq/mailinglists.html -- SLUG - Sydney Linux User's Group Mailing List - http://slug.org.au/ Subscription info and FAQs: http://slug.org.au/faq/mailinglists.html
Re: [SLUG] ubuntu network manager dns
Ashley, Response, inline below Regards, Martin martinvisse...@gmail.com On Sat, Mar 27, 2010 at 9:37 PM, Ashley Maher ashley.ma...@didymodesigns.com.au wrote: I am trying to set up a Telstra Prepaid wireless usb modum to Ubuntu 9.10. The initial set up went very well. However /etc/resolv.conf was empty. (As has been noted by some users I found using google) So I statically entered some dns servers into /etc/resolv.conf from the telstra list. Pinging the ip number of the server works fine. Pinging the web address fails What do you mean by pinging a web address, the name of the server? If you can ping a DNS server by it's IP address, but not by it's fully-qualified domain name (FQDN), then you can stop right there as your DNS configuration/connection is not working. (Being able to reach a site using PING only really tests that you can reach it with the ICMP protocol over IP. It doesn't test anything more about reachability to a particular host, the initial DNS lookup done by ping if needed is really just a side effect). To test DNS, once you think you have resolv.conf correct, use host FQDN. If this returns nothing, then DNS is broken. You can make it more verbose with host -v FQDN. You can also use host to force it use a particular DNS. For instance Google have magnanimously made available 8.8.8.8 as a freely available and easily remembered DNS. To test it you can do something like host www.google.com 8.8.8.8 to get the following result. $ host www.google.com 8.8.8.8 Using domain server: Name: 8.8.8.8 Address: 8.8.8.8#53 Aliases: www.google.com is an alias for www.l.google.com. www.l.google.com has address 74.125.19.106 www.l.google.com has address 74.125.19.147 www.l.google.com has address 74.125.19.99 www.l.google.com has address 74.125.19.103 www.l.google.com has address 74.125.19.104 www.l.google.com has address 74.125.19.105 Of course you could test that you can directly reach the Telstra DNS (using DNS) by this method. If explicitly doing a DNS lookup against those servers does work with say host www.google.com 1.2.3.4 where 1.2.3.4 is the DNS server you are hoping to use, but plain host www.google.com doesn't then your DNS config is broken. . So I entered the Bigpond dns servers for NSW, Queensland and Victoria into network manager. This creates a nice shiny /etc/resolv.conf that looks correct when ever the connection is made into the telstra network. Still, ping works for ip numbers, fails for urls. ping only works for IP addresses or properly formed DNS names - never URLs. Yet if I enter a url - ip number pare into /etc/hosts all is good. Remove the entry from /etc/hosts fail again. Are you really putting a URL in /etc/hosts or do you mean a name? Anybody with any ideas? Thanks in advance. Regards, Ashley -- SLUG - Sydney Linux User's Group Mailing List - http://slug.org.au/ Subscription info and FAQs: http://slug.org.au/faq/mailinglists.html -- SLUG - Sydney Linux User's Group Mailing List - http://slug.org.au/ Subscription info and FAQs: http://slug.org.au/faq/mailinglists.html
Re: [SLUG] ubuntu network manager dns
Also be aware that there some ISPs tend to a few things with DNS 1. Some do block access to their DNS from outside of their network. I think this is mainly because they don't want to provide a service to the wider Internet that potentially means their own customers get impacted by DNS DOS attacks or simply heavy load. Certainly Telstra did do this as their DNS became well-known in Australia. I recently implemented a fairly large enterprise and Internet facing DNS environment for a telecommunications customer recently and the legacy environment was being impacted quite heavily by non-customer load. So while you may have some Telstra DNS server addresses, they may be being blocked from their mobile/3G network to minimise unplanned load. 2. DNS can be used to help direct the subsequent application traffic to particular managed servers. For instance, Internode provide unmetered content to their customers, one of which is the ABC iView service. However at least in some part, probably because of the use of content-delivery networks, Internode ask to make you use their DNS. I presume if you don't their is a risk that your ABC iVIew traffic gets directed to servers other than those Internode can provide unmetered traffic for, and hence you think your iView is unmetered but is in fact coming from outside servers. And as James Gray has said DNS can also be used as a poor-mans way of filtering traffic - by giving NXDOMAIN or other redirections when you try to resolve the name of an undesired service. (And of course hijacking legitimate DNS services, through cache poisoning and the like, is one way the bad guys can you fool you to visit them instead of your regular programmed service). Most Interrnet service providers do list what their recommended DNS is for their service. Usually you can implement your own or choose your own DNS service, but you need to be aware a little of what you are doing. Regards, Martin martinvisse...@gmail.com On Sun, Mar 28, 2010 at 5:57 AM, Ashley Maher ashley.ma...@didymodesigns.com.au wrote: Thanks Martin, host damn That is what I was looking for. It has been years since I have needed that. I am used to putting in the IP of a dns server into resolv.conf and all good. It was very frustrating to find that most of the listed tesltra dns servers failed. host allowed me to check what servers are working quickly. Thanks. All good now. Brain Fade. Regards, Ashley Martin Visser wrote: Ashley, Response, inline below Regards, Martin martinvisse...@gmail.com mailto:martinvisse...@gmail.com snip -- SLUG - Sydney Linux User's Group Mailing List - http://slug.org.au/ Subscription info and FAQs: http://slug.org.au/faq/mailinglists.html
Re: [SLUG] Problems with DVD creation
Patrick, You haven't mentioned the format of DVDs you're using. I believe that the general consensus is that DVD-R generally has better compatibility with DVD video players than DVD+R. It could be as simple as this. Also the semi-conductor lasers used in DVD players tend to lose power over time, and while there is compensating circuitry for this, eventually they reach the design limits. We have had a few PC-based CD/DVD-ROM drives and a regular DVD player that simply would not read marginal disks any more, despite lens cleaning. Home burned DVDs always tend to not be readable before commercial pressed media in this situation. Regards, Martin martinvisse...@gmail.com -- SLUG - Sydney Linux User's Group Mailing List - http://slug.org.au/ Subscription info and FAQs: http://slug.org.au/faq/mailinglists.html
Re: [SLUG] mount LVM from Ubuntu live CD
I don't get how sync will write anything to a ro filesystem. That seems to be to break a fundamental kernel and filesystem principle. I would have thought either the remount would either force a flush of dirty blocks before it switches to ro, or alternatively those blocks still dirty at the time of the remount end up in the bit bucket. Also I have seen this 3 sync incantation before. It seems to me that all you are doing playing snap with processes that might have stuff to write but hasn't been flushed. After any sync and before the final shutdown I presume any running process is at liberty to create new dirty blocks that may or may not make it to disk in time. Regards, Martin martinvisse...@gmail.com On Sun, Feb 21, 2010 at 12:37 PM, Daniel Pittman dan...@rimspace.netwrote: Jeremy Visser jer...@visser.name writes: On 19/02/10 13:41, Daniel Pittman wrote: ] mount / -o remount,rw ] passwd root # ...and give it a good password ] mount / -o remount,ro ] sync; sync; sync # wait thirty seconds, because paranoia never hurts ] sync; sync; sync; reboot Just be aware that you don't get a lot of nice things like, oh, some of the flush on shutdown behaviour that you do in a normal boot. Shutting down from the GUI, or typing 'halt' isn't magic. It doesn't magically do anything that sync doesn't. How else do you think that the logic works when you shut down? ...perhaps my working wasn't clear, as you seem to be restating my point? Daniel -- ✣ Daniel Pittman✉ dan...@rimspace.net☎ +61 401 155 707 ♽ made with 100 percent post-consumer electrons -- SLUG - Sydney Linux User's Group Mailing List - http://slug.org.au/ Subscription info and FAQs: http://slug.org.au/faq/mailinglists.html -- SLUG - Sydney Linux User's Group Mailing List - http://slug.org.au/ Subscription info and FAQs: http://slug.org.au/faq/mailinglists.html
Re: [SLUG] one serial port multiple readers
Del, I just did a simple test, that might help you to a solution 1. Used mkfifo to create 3 pipes mkfifo /tmp/r1;mkfifo /tmp/r2;mkfifo /tmp/r3; 2. Used tee -a to write a copy of data to each of these - (while [ 1 ]; do date; sleep 1; done ) | tee -a /tmp/r1 | tee -a /tmp/r2 | tee -a /tmp/r3 3. In 3 separate terminals did a cat /tmp/r1 (and r2 and r3). This *mostly* works, but killing one listening process seems to cause the others to abort. I am guessing there is some foo I am not aware of. Regards, Martin martinvisse...@gmail.com On Tue, Dec 29, 2009 at 10:03 PM, Del d...@babel.com.au wrote: Hi, Does anyone have a solution to this problem? I have a serial port (connected to a GPS at 4800 baud). I have multiple processes that need to read from that serial port. I need all of the processes to read the same data, essentially creating a one way chat from the serial port to all processes listening in. I've tried using socat but if I create a socket connection, using, e.g. socat TCP4-LISTEN:2,reuseaddr,fork /dev/ttyUSB0,b4800,raw,echo=0 ... then have multiple connections in to TCP socket 2, then each socket connection gets part of the data stream from the serial port. I've tried setting up a multicast, but because multicast is UDP based I'm seeing occasional packet-out-of-order and packet-dropped issues. Ideally I'd like it to be TCP based -- I have one process that can connect to a TCP socket for its data rather than read from the port, and I can use socat to create PTYs for the other processes that expect a serial port provided the data comes in in the right order. Yes, I know about gpsd, and one of the processes that needs to read the serial data is gpsd, but I have some processes that need to read the raw data provided by the GPS and not gpsd's output. Thanx, -- Del Babel Com Australia http://www.babel.com.au/ ph: 02 9966 9476 fax: 02 9906 2864 -- SLUG - Sydney Linux User's Group Mailing List - http://slug.org.au/ Subscription info and FAQs: http://slug.org.au/faq/mailinglists.html -- SLUG - Sydney Linux User's Group Mailing List - http://slug.org.au/ Subscription info and FAQs: http://slug.org.au/faq/mailinglists.html
Re: [SLUG] Australian government to censor your internets
Kevin The physical links to the rest of the Internet are not some vapourish, unfathomable sort of web. They are real bits of optical fibre cabling (with a smattering of satellite for backup) that terminate on real routers in real data centres. They are certainly enumerable, probably only numbering in a few hundreds at most. Already every large ISP and phone carrier will have some sort of demarc room that allows the feds, state police or spooks to execute wiretapping warrants. Given the judicial go-ahead, a little time and resources pretty much any digital communication is already traceable and able to captured for whatever analysis. That said, at anyone time I am sure that there is only the resources to ever capture (and analyse) a thousandth of percent of such traffic. From a technical point of view, I think the main issue with Conroy's proposal will be maintaining a filter list that is actual credible and able to be justified by any normal measure. There will need to be a tradeoff between the fine granularity that *might* be useful, but which would need a lot of processing grunt (both from humans and the necessary hardware/software to implement) and what is more likely to happen which is a very coarse filter that satisfy neither side of the debate. Regards, Martin martinvisse...@gmail.com On Thu, Dec 17, 2009 at 10:49 PM, Kevin Shackleton kev...@reachnet.com.auwrote: I'm confused. I thought the whole idea of DARPANet was that it was bomb-proof - there was always another route open. How exactly are the Thought Police going to sit on every possible route into Oz? How well does the Chinese government censorship work, in terms of bandwidth filtered? I bet it's significantly under 100%. It seems to me, like metropolitan area wireless networks instill a little bit of honesty into ISPs, to be up to sites with links to international satellite service providers to resist any control from the government and pass packets not just because they can but because they should. Kevin. On Thu, 2009-12-17 at 17:46 +1100, meryl wrote: Heracles is right. The Filtering problem is more about stifling freedoms of speech and censoring the Net than it is about blocking child porn, and it is bound to be extended into other areas so freedom of speech will become a thing of the past for us in Australia. Apart from slowing down our already sluggish Internet speeds, if it is introduced it is likely to be extended down the track to include all manner of sites; possibly even political dissenters... if they get away with this and they'll add more and more sites to the list to the point where we may one day envy the freedoms that the Chinese have! Really the child porn issue is just being used as an emotional ruse to effect censorship controls because the purveyors of such material for the most part would most likely use VPNs and other evasive methods to avoid detection, as such their heinous activities will be totally unaffected by the filter. How about the government catch these crooks and lock them up instead of punishing all of us with this net-nanny filter. By and large the Filter will be way more detrimental to the average honest Internet user and the child pornographers will just sit back and laugh at the stupidity of Australian government. for more info see: http://www.news.com.au/couriermail/story/0,23739,25773857-953,00.html http://www.arnnet.com.au/article/312845/statistics_experts_label_isp_filtering_trials_unscientific?fp=16fpid=1 http://www.theaustralian.com.au/news/opinion/careful-big-brother-is-editing-you/story-e6frg7go-1225792964441 http://www.openforum.com.au/content/firewall-lies http://libertus.net/liberty/ http://www.efa.org.au/censorship/mandatory-isp-blocking/ http://www.youtube.com/watch?v=S8AZ21hCkIg and as always there's a Downfall video on the subject! http://www.youtube.com/watch?v=tH35CVig3fQ cheers, Meryl -- SLUG - Sydney Linux User's Group Mailing List - http://slug.org.au/ Subscription info and FAQs: http://slug.org.au/faq/mailinglists.html -- SLUG - Sydney Linux User's Group Mailing List - http://slug.org.au/ Subscription info and FAQs: http://slug.org.au/faq/mailinglists.html
Re: [SLUG] Google Chrome for Linux !!!
Meryl, The particular issue around auto-suggestion in Chrome is really just embedding what has been in the standard http://google.com.au search box from any browser. Anything you type in that box is going back to Google in order to provide a suggested search string that it thinks in likely what you were going to type any way. And as the article suggested you can turn that feature off, or if you are more concerned you have opportunity to examine the source code to determine what other things it might be sending back. In my opinion most of the articles that highlight how much Google (or Facebook or Yahoo) know about us are really only amplifying what most people already know. At least Google are really upfront about what they use it for, it is the orgainisations that squirrel it away, and have next to zero stated policy or safeguards that are more of a concern. Regards, Martin martinvisse...@gmail.com On Mon, Dec 14, 2009 at 9:08 AM, meryl gnu...@aromagardens.com.au wrote: When I looked at some evaluations on Google Chrome the alarm bells went off. I'm keen to know what the general consensus is on the whole Google/Linux/privacy issue... Whilst the following Chrome criticisms were posted back in 2008, one wonders about the ethical processes for Google's need to introduce something akin to keylogger in the first place and are some of these concerns still valid today http://blogs.computerworld.com/chrome_googles_biggest_threat_to_your_privacy and the subsequent follow up http://www.computerworld.com/s/article/9114369/Google_bends_to_Chrome_privacy_criticism Do you trust that Google have addressed these concerns adequately? Is the average Linux user concerned about their computing privacy? Is Google Chome a threat to the security of Linux machines? Meryl -- SLUG - Sydney Linux User's Group Mailing List - http://slug.org.au/ Subscription info and FAQs: http://slug.org.au/faq/mailinglists.html -- SLUG - Sydney Linux User's Group Mailing List - http://slug.org.au/ Subscription info and FAQs: http://slug.org.au/faq/mailinglists.html
Re: [SLUG] Konqueror spits out 'malformed UR'L when accessing /home
Patrick, Not being a KDE or Konqueror user, I don't experience this (and Chromium, Firefox and Nautilus don't seem to have problems with the file protocol) But there seem to be a number of open bug reports that are related to your issue:- https://bugs.kde.org/show_bug.cgi?id=192632 - Protocol not supported file https://bugs.kde.org/show_bug.cgi?id=202288 - Konqueror has crashed browsing filesystem, It might be worth submitting a new report if you can't find your a problem close to yours. https://bugs.kde.org/show_bug.cgi?id=192632 Regards, Martin martinvisse...@gmail.com On Tue, Oct 20, 2009 at 1:53 PM, elliott-brennan elliottbren...@gmail.comwrote: Erk! Nope. Doesn't work either. I changed the home page within Konqueror to file:///home/amanda and file:///home/amanda and file:///home/amanda/Documents and on start up, Konqueror still gives me the same error message. Once I'm in, it's okay (??) If my start up selection is my home page (well, Amanda's) it gives me the same error. If I use the 'introduction page' as the starting point, it starts without a problem BUT if I click on ANY file within the hierarchy shown in the navigation panel, the damn thing gives me the same error. It pops up twice. I okay it and then all is well. ??? Sridhar Dhanapalan wrote: 2009/10/19 elliott-brennan m...@elliott-brennan.id.au: Hi all, I've recently installed Kubuntu Jaunty 9.04. Konqueror version 4.2.4 I changed the home page to /home/user.name and each time I tried to open Konqueror it would pop up a window stating: Malformed URL At a guess, you might need to specify a protocol, e.g. file:///home/username Sridhar -- Blog:http://youcantdothatinlinux.blogspot.com/ Blog:http://lugnuts.wftl-lug.org/pg/blog/Patrick Website: www.youcantdothatinlinux.com Registered GNU/Linux User 368634 -- SLUG - Sydney Linux User's Group Mailing List - http://slug.org.au/ Subscription info and FAQs: http://slug.org.au/faq/mailinglists.html -- SLUG - Sydney Linux User's Group Mailing List - http://slug.org.au/ Subscription info and FAQs: http://slug.org.au/faq/mailinglists.html
Re: [SLUG] django/rails
Damn shame you didn't ask the question last week. We had a great talk down in Wollongong last Thursday at the South Coast LUG on Django. Not recorded unfortunately, but you can find Joshua's slides at http://www.slideshare.net/jpartogi/webdevdjango-2103788 It certainly seems fairly easy to get into (but not being a web developer I have no point of comparison with ruby on rails). Regards, Martin martinvisse...@gmail.com On Tue, Oct 6, 2009 at 12:37 AM, david da...@kenpro.com.au wrote: I'm reading up on both, trying to make an intelligent decision which to use. I'm agnostic about ruby/python, although I have a faint feeling that python may be better. In either case I have to learn the language. Does anyone care to venture an opinion? Flame war anyone? David PS: I've noted that Ruby has a DB migration facility which looks useful. quote from article There are two key advantages to Rails' incremental migrations compared with Django. First, Rails provides a standard mechanism for deploying new releases to already running production systems while preserving data. For example, if a database column's type is changed from char to integer, the accompanying Rails migration script would specify the steps required to move the data from the old char column to the new integer column. To perform similar operations in Django, the developer would need to write an ad-hoc SQL script. The second advantage is that, being easily rolled back, migrations encourage a certain amount of experimentation with the model classes and database schema. Certainly some experimentation with models is possible in Django, especially if the model code is kept under source code control, but as data is not preserved through such changes, it is less attractive unless there is a mechanism for quickly loading test data. At the time of writing, the Django development community is working toward introducing a schema evolution mechanism. /quote -- SLUG - Sydney Linux User's Group Mailing List - http://slug.org.au/ Subscription info and FAQs: http://slug.org.au/faq/mailinglists.html -- SLUG - Sydney Linux User's Group Mailing List - http://slug.org.au/ Subscription info and FAQs: http://slug.org.au/faq/mailinglists.html
Re: [SLUG] Dreamweaver clone for Linux ?
On Thu, Sep 17, 2009 at 1:56 PM, Ishwor ishwor.gur...@gmail.com wrote: snip PHP is full of bugs and security vulnerabilities(all the time). It maybe easier to learn+program comparatively but I would rather not bother with it. I would rather suggest that junior start with Python. snip I'm a big Python fan, but I reckon you can code up just as many insecure sites or web frameworks in Python as you can in PHP. Certainly there is a gazillion well put together PHP based sites and frameworks, that are standing up in pretty well against the elements of evil that are out there. So I wouldn't dismiss it so lightly. -- SLUG - Sydney Linux User's Group Mailing List - http://slug.org.au/ Subscription info and FAQs: http://slug.org.au/faq/mailinglists.html
Re: [SLUG] Dreamweaver clone for Linux ?
We just want to make sure Kyle is asking the right question ;-) Regards, Martin martinvisse...@gmail.com On Thu, Sep 17, 2009 at 2:37 PM, Blindraven blindra...@gmail.com wrote: This is why I love SLUG. Somebody asks for a Linux Dreamweaver alternative, and it goes from do it in vim to He should just learn Python. We're tops. !! -- SLUG - Sydney Linux User's Group Mailing List - http://slug.org.au/ Subscription info and FAQs: http://slug.org.au/faq/mailinglists.html
Re: [SLUG] Petabytes on a budget
Jake, Most of thenumbers you are showing are just the clocked speeds on busses and cables. Certainly the components can clock at those speeds, but the biggest issue with lower-end components is whether they can actually feed and sustain data at that rate, and how well they handle contention for resources. Generally this comes down to size of buffers, and whether have fast or wide enough processors at those interface points. But it sounds like for the business Backblaze is in they are building something that is big rather than fast (or at least something that is fast enough). And certainly if you can parallelize the system enough (and maintain reliablity) then you probably even achieve cheap and fast. Regards, Martin martinvisse...@gmail.com On Thu, Sep 3, 2009 at 12:40 PM, Jake Anderson ya...@vapourforge.comwrote: On 03/09/09 10:37, Mark Walkom wrote: I was thinking the same, but I reckon because they are just backing up/archiving data it wouldn't be too bad. ie They aren't looking for huge performance, just huge, cheap storage. 2009/9/3 Morgan Storeym...@morganstorey.com I know I am a geek but that is hot. I am wondering if they see any throughput issues with the sata backplanes and pci sata cards. The backplanes are probably fine, each sata cable is good for ~300mbytes/sec most physical disks couldn't hope to hit that. lesse what their maximum xfer rate is. each drive can hit 103mb/sec average (better than I thought) each sata channel will max out at 250mbyte/sec so they are going to be loosing some bandwidth there. their backplanes take 5 disks, so a potential bandwidth of well call it 500mbyte/second so 50% is out the window there actual bandwidth per 5 disks is going to be 250mbyte they have 9 of these channels for a total bandwith available of 2250mbyte/sec (2 gigabytes a second, that'll rip some dvds fast) standard PCI tops out at 133mbyte/sec so thats out ;- it looks like they are using PCI-E SATA cards the mbo they have and the cards they are using indicate they have 3x of something like this http://www.syba.com/index.php?controller=Productaction=InfoId=861 which maxes out at 250mbyte/sec per (1x PCI-E 1x lane) and one 4 port card which if it comes from that mob must be a PCI by the look of things. but I'll assume that its PCI-E and at least 4 lanes. so the total xfer rate is 1750mbyte/sec (or 883 if they are using the PCI card) Vs the total possible xfer rate of 4500 they aren't doing *too* badly given that on a gigabit ethernet connection you are lucky to push 30mbyte/sec (or 60 if you tweak it), I think its not going to be a big issue ;- If they wanted more oomph their best bet would be to put 2x 16 port PCI-E 16x cards into a motherboard that supported it (most decent SLI motherboards will do that) better still one with 4x pci-E 16 slots so that you can put some 10gigE cards in as well something like http://www.aria.co.uk/Products/Components/Motherboards/Socket+AM3+(AMD)/MSI+790FX-GD70+AM3+Motherboard+with+4+x+PCIe+x+16+?productId=36604http://www.aria.co.uk/Products/Components/Motherboards/Socket+AM3+%28AMD%29/MSI+790FX-GD70+AM3+Motherboard+with+4+x+PCIe+x+16+?productId=36604 say (but with intel of course ;-) That should net you (assuming you use dual port 10gig-E nics) an xfer rate out of the box of around 2400mbytes/sec almost fast enough to spy on teh entirez intarwebz!! -- SLUG - Sydney Linux User's Group Mailing List - http://slug.org.au/ Subscription info and FAQs: http://slug.org.au/faq/mailinglists.html -- SLUG - Sydney Linux User's Group Mailing List - http://slug.org.au/ Subscription info and FAQs: http://slug.org.au/faq/mailinglists.html
Re: [SLUG] DNS Appliances/Web Frontends
Infoblox is definitely the bees knees. I have just deployed a swagger of them to a quite large customer. While they are based on BIND and Linux, the excellent system and application management glue that makes them work very well is proprietary. They are definitely a premium-class product and probably don't fit the original posters price range, but I definitely recommend look at them for a large-scale enterprise deployment. Regards, Martin martinvisse...@gmail.com On Mon, Aug 31, 2009 at 11:51 AM, David Gillies da...@dorja.com wrote: UnspecifiedId wrote: Greetings, a) can anyone recommend a good virtual DNS appliance with a decent Web GUI frontend I haven't worked with them personally but an ex-colleague of mine had some pretty good things to say about Infoblox: http://www.infoblox.com/ I did a bit of googling and found a bunch of other appliances on the market: http://www.infoweapons.com/products/solidDNS.php http://btdiamondip.com/products/DHCP_DNS_Appliances/ http://appliansys.com/products/dnsbox/400/ http://www.bluecatnetworks.com/products/proteusipam http://www.efficientip.com/en/product-enterprise/appliances/dnsdhcp-solidserver/en-prodenterp-appliance-dnsdhcp.php When you do your googling you might want to search for IPAM as well. On the free/opensource front, you might want to check out IPplan: http://iptrack.sourceforge.net/ I've played around with it in a demo site and it looks alright. -- SLUG - Sydney Linux User's Group Mailing List - http://slug.org.au/ Subscription info and FAQs: http://slug.org.au/faq/mailinglists.html -- SLUG - Sydney Linux User's Group Mailing List - http://slug.org.au/ Subscription info and FAQs: http://slug.org.au/faq/mailinglists.html
Re: [SLUG] where to get an Ethernet hub (NOT a switch)
Amos, Of course if you purely want to find out the top talkers by IP, probably the industry-standard of way of doing is to in the longer term is to have your router send netflow stats to a collection server. Pretty much any business level router will do this. And if you have chosen a Linksys WRT type of router you run DD-WRT or OpenWRT on it and it will also have a netflow (or a clone, DD-WRT uses rflowd). Netflow stats can then be captured and processed with flow-tools (for scrit based processing) or Ntop which gives a more graphical way of viewing things. The custom WRT firmware can also run tcpdump which can be used for detailed analysis by Wireshark. So depending on your choice of routers you may not even need a hub or port-mirroring switch. Regards, Martin martinvisse...@gmail.com -- SLUG - Sydney Linux User's Group Mailing List - http://slug.org.au/ Subscription info and FAQs: http://slug.org.au/faq/mailinglists.html
Re: [SLUG] where to get an Ethernet hub (NOT a switch)
Actually it is pretty straight forward - For as long as you own the product, - http://www.procurve.com/customercare/support/warranty Basically if it breaks due to defects in materials and workmanship, they'll fix it (as long as you didn't break it by the way it was operated or maintanedt). (Yes, I do work for HP, but I am not speaking on their behalf - read all the warranty conditions for yourself or in the presence of a lawyer ;-) ) Regards, Martin martinvisse...@gmail.com On Sun, Jul 19, 2009 at 10:46 PM, Voytek Eymont li...@sbt.net.au wrote: On Sun, July 19, 2009 7:55 pm, pe...@chubb.wattle.id.au wrote: Amos == Amos Shapira amos.shap...@gmail.com writes: lifetime warranty from HP, so are pretty safe to buy. lifetime=/life time what's a lifetime of such, as defined by HP? I used to have some SMC ISA NICs with lifetime warranty, when one failed, I've called SMC to have it replaced: 'that card is over 5 years old' 'the liftetime of that product is 5 years' -- Voytek -- SLUG - Sydney Linux User's Group Mailing List - http://slug.org.au/ Subscription info and FAQs: http://slug.org.au/faq/mailinglists.html -- SLUG - Sydney Linux User's Group Mailing List - http://slug.org.au/ Subscription info and FAQs: http://slug.org.au/faq/mailinglists.html
Re: [SLUG] where to get an Ethernet hub (NOT a switch)
I think you will find getting a hub pretty hard these days - no one builds them. Presumably you need one so that you can send a copy of traffic for something link Wireshark or Ntop to analyse. Your best bet these days is to find a small manageable switch that supports port mirroring. HP ProCurve have the 1700-8 which is 10/100 and supports mirroring of any number of the ports to one port. (Also supports VLANs as a bonus). The big advantage is that once you have set it up you can rearrange the ports you want mirrored as you need without having to rearrange patching like you would with a hub. Can be your for under $150 locally. (You will probably find that Linksys and Netgear both have similar low-end managable switches for around the same price range). Regards, Martin martinvisse...@gmail.com On Sun, Jul 19, 2009 at 9:36 AM, Amos Shapira amos.shap...@gmail.comwrote: Hello, I'm looking for an Ethernet hub to be used for network troubleshooting (trying to find which of our hosts is involved in the load on our office uplink). So far eBay came up with only one option in Australia (which is a modem, and therefore apparently there is more competition on it) and one in the US (which adds to shipping cost and time). Does anyone here knows where can I get an Ethernet hub in Australia, preferably where I can get it quick to Sydney area, and not so expensive? (it seems that current hub models are expensive security-related ones, not justifiable for my requirements). 100Mbit would be preferable, but maybe not essential if we connect it between the router/firewall and the SHDSL modem. Thanks, --Amos -- SLUG - Sydney Linux User's Group Mailing List - http://slug.org.au/ Subscription info and FAQs: http://slug.org.au/faq/mailinglists.html -- SLUG - Sydney Linux User's Group Mailing List - http://slug.org.au/ Subscription info and FAQs: http://slug.org.au/faq/mailinglists.html
Re: [SLUG] Well-known contributors to Ubuntu history
Leo Laporte and Randal Schwartz have been doing a great podcast for a few years now that seems to have done a good job of picking a lot of the prominent projects and associated luminaries in free and open-source software, FLOSS Weekly. The list of previous episodes is worth looking through at http://twit.tv/FLOSS and Randal is crowd-sourcing his list of those he would like to interview at http://spreadsheets.google.com/pub?key=pYAJMbVobYCTro_z4LGo3ZQ Regards, Martin martinvisse...@gmail.com On Tue, Jul 14, 2009 at 4:27 PM, Jon jonjer...@optusnet.com.au wrote: I'm putting together a book about Ubuntu, and I would like to include a list of people who have made the most significant contributions to the development of Ubuntu and Linux in general. I have the usual suspects -- Linus Torvalds, Richard Stallman, Andrew Tanenbaum, Ian Murdock, Mark Shuttleworth -- but after that it's hard to clearly see who stands out. Perhaps some of you who have a longer history with Linux than I do could indicate who really made a difference for you, and why. I want to say something more than 'X is a really great developer' if I can. Pointers to quotes or interviews would be handy too. Thanks in advance, Jon. -- SLUG - Sydney Linux User's Group Mailing List - http://slug.org.au/ Subscription info and FAQs: http://slug.org.au/faq/mailinglists.html -- SLUG - Sydney Linux User's Group Mailing List - http://slug.org.au/ Subscription info and FAQs: http://slug.org.au/faq/mailinglists.html
Re: [SLUG] ANOTHER draft intro/outros for SLUG monthly meeting videos
Patrick, Just be aware that for whatever reason the Sydney Opera House often claim special protection of it's image for commercial or advertising use - even if you took the photograph. I haven't really perused all the legal ins and outs and whether they have a leg to stand on. There is even some interchange from the SOH mentioned here http://www.freedomtodiffer.com/freedom_to_differ/2007/06/photographing_t.html Until recently, the company I work for, HP, was a major sponsor of the SOH, and always asked for permission to use footage of the 'House even if was their own footage. I recall that there was discussion around the viability of the use of the SOH image (and even the SLUG logo) during the planning of LCA 2007. I would hate to see all your great creative work hit the cutting room floor if a lawyer gets a wiff of making a name for himself. (Of course we may just want to bring it on - certainly might open some discussion around copyright freedoms ;-) ) Regards, Martin martinvisse...@gmail.com On Mon, Jun 29, 2009 at 10:44 AM, elliott-brennan m...@elliott-brennan.id.au wrote: Hi Marghanita, Thanks for the feedback, all of which is doable. I like the idea of the SLUG snail sailing across the screen towing the credits/information. I'll trial that for everyone to look at. The only issue may be time. Text dissolving on to the screen is quicker and it may be that people will find a large number of credits being towed behind a collection of snails takes too long. However, I'll give it a go with a mock collection of credits and see how it turns out...maybe with a little flag/banner which contains the text. Also, if this isn't already the case, if the information is included as text on the webpage along with the abstract - then the video will be more discoverable. I think this would be a good idea for the final versions if/when posted on the various video sites. I'd also had the idea of having the SLUG icon at the bottom of the video (like the TV stations) and having text about who is talking and about what, appear regularly at the bottom, like in documentaries. All of this is easily doable. I'd like to add a bit of icandy (TM) to the videos and dolly them up a bit so they're more attractive to the casual and/or regular viewer. If it's agreed to put the vid online (say on Youtube, Vimeo etc) then this may also create an audience outside of SLUG and draw in some more people to the community in general and *nix at large. A secondary aim is to show people outside of the community that attractive video editing on the Gnu/Linux platform is not only possible but can be done by everyone (and predominantly - often solely - with GUI applications). I guess my experience when initially speaking to people about Linux was that they felt it could not do these things. I'm hoping that if we can show the presentations online, in their party dress, then it will help to reduce some of the resistance and inaccurate views of Linux by showing people that the 'extras' are available (it annoys me when writers in newspapers, magazines and online describe Linux as a way of accessing the 'net, as if this is all you can do). I'll post the next version later in the week. Regards, Patrick On 29/06/2009, Marghanita da Cruz marghan...@ramin.com.au wrote: elliott-brennan wrote: Okay. Had some feedback. Below is another one. This I like more than any of the others. A bit more whimsical. http://www.youtube.com/watch?v=TjxsbpdSXX8 Natch the original is far smoother and better looking. Regards, Patrick I like the latest version My suggestions: drop the SLUG frames. Move the SLUG SNAIL so, that its sails are silloutted by the opera house sails - or maybe moves across the waves right to left...pauses and then pulls the credits through On a more mundane note, It would be useful to have a standard form creditsfollowing the SLUG right to left...Suggestion:Topic, Speaker, Date, Venue, camera person, editorteam?, License...and perhaps this along with the SLUG logo could persist through the video - on fixed black banner bottom of screen Also, if this isn't already the case, if the information is included as text on the webpage along with the abstract - then the video will be more discoverable. Marghanita -- Marghanita da Cruz http://www.ramin.com.au Phone: (+61)0414 869202 -- SLUG - Sydney Linux User's Group Mailing List - http://slug.org.au/ Subscription info and FAQs: http://slug.org.au/faq/mailinglists.html -- SLUG - Sydney Linux User's Group Mailing List - http://slug.org.au/ Subscription info and FAQs: http://slug.org.au/faq/mailinglists.html
Re: [SLUG] SLUG meeting videos/slides? SYSADMINS:- LOOK AT VIDEO STORAGE
Awesome, thanks Ken + the team! Regards, Martin martinvisse...@gmail.com On Sun, May 31, 2009 at 3:54 PM, Michael Chesterton che...@chesterton.id.au wrote: This time to the list :( Begin forwarded message: From: Michael Chesterton che...@chesterton.id.au Date: 31 May 2009 3:53:41 PM To: Ken Wilson kenwi...@ozemail.com.au Subject: Re: [SLUG] SLUG meeting videos/slides? SYSADMINS:- LOOK AT VIDEO STORAGE On 30/05/2009, at 9:22 PM, Ken Wilson wrote: Jamnes and Jeffs talks recorded OK, are uploaded to LA site, available some time soon,, when fancy automatics happens. The videos are up, (thank you very much) they're in the 2008 directory. http://mirror.linux.org.au/lug/slug/2008/ Thanks Ken. -- http://chesterton.id.au/blog/ http://barrang.com.au/ -- http://chesterton.id.au/blog/ http://barrang.com.au/ -- SLUG - Sydney Linux User's Group Mailing List - http://slug.org.au/ Subscription info and FAQs: http://slug.org.au/faq/mailinglists.html -- SLUG - Sydney Linux User's Group Mailing List - http://slug.org.au/ Subscription info and FAQs: http://slug.org.au/faq/mailinglists.html
Re: Fwd: [SLUG] SLUG meeting videos/slides? SYSADMINS:- LOOK AT VIDEO STORAGE
Yes, I had the same issue. I actually found that Movie Player (totem) actually does a better job in playing then mplayer. (mplayer basically shows garbage/blocks, whereas totem just does a freeze-frame for a second or two when the errors occur). My guess is that during the transfer from camera to disk (maybe using dvgrab??) that video frames are being dropped - possibly due to your capture workstation not keeping up with the firewire/1394 transfer. The fault-mode displayed doesn't seem to what you would normally see because of an encoding issue, but I could be wrong. Regards, Martin martinvisse...@gmail.com On Sun, May 31, 2009 at 11:04 PM, Jeff Waugh j...@perkypants.org wrote: quote who=Michael Chesterton This time to the list :( Looks like there's an ugly encoding issue going on... the audio seems fine, but the video goes nuts in mplayer (and gstreamer just seems to ignore the intermediate frames -- mplayer is valiantly trying to do something useful with them). What did you use to encode the videos? - Jeff -- linux.conf.au 2010: Wellington, NZ http://www.penguinsvisiting.org.nz/ I rather think of Pat as our linguistic ornithologist here - 'Oh look, the brown noddy also nests in the mangrove!' - John Fleck -- SLUG - Sydney Linux User's Group Mailing List - http://slug.org.au/ Subscription info and FAQs: http://slug.org.au/faq/mailinglists.html -- SLUG - Sydney Linux User's Group Mailing List - http://slug.org.au/ Subscription info and FAQs: http://slug.org.au/faq/mailinglists.html
[SLUG] SLUG meeting videos/slides?
I know that this question comes up from time to time, but I think it is the first time that I have asked, so I thought I would kick it out there again ;-) I try to get to meetings 2 or 3 times a year, but can't always get there, mainly because of work and geographic issues. I know many members of the list are in a similar situation. As far as I am aware, video recordings of the main talks as well as slides are captured every month. Unfortunately, it seems though that this valuable material isn't being published. I know that there has been issues with manpower/server space/broken cameras etc that have been discussed in the past. So I guess I am wondering whether there is a plan to get this back on track? I don't imagine the problem is insoluble, and if people are made aware of what needs to be done they can possibly pitch in. (I am particular interested in seeing Jeff's talk tonight but probably won't be able to get there - and I know of at least one person that can't be there but would love to see it). Regards, Martin martinvisse...@gmail.com -- SLUG - Sydney Linux User's Group Mailing List - http://slug.org.au/ Subscription info and FAQs: http://slug.org.au/faq/mailinglists.html
Re: [SLUG] Re: Web hosting recommendations
Our personal websites are hosted on Dreamhost. They provide oodles of bandwidth and storage, and have great availability, and have been around for quite a while. (My son Jeremy admins them along with his customer's sites, and constantly raves about about how good they are). http://www.dreamhost.com/hosting.html has all the details. Regards, Martin martinvisse...@gmail.com On Tue, May 12, 2009 at 5:13 PM, Mary Gardiner m...@puzzling.org wrote: On 2009-05-12, Mary Gardiner m...@puzzling.org wrote: For a price: say ballpark AU$40 a year at most. Thinko alert: should be per MONTH. Hopefully that will improve the recommendations, and apologies for the confusion. -Mary -- SLUG - Sydney Linux User's Group Mailing List - http://slug.org.au/ Subscription info and FAQs: http://slug.org.au/faq/mailinglists.html -- SLUG - Sydney Linux User's Group Mailing List - http://slug.org.au/ Subscription info and FAQs: http://slug.org.au/faq/mailinglists.html
Re: [SLUG] Laptops with Linux pre-installed?
Erik, A subset of the new HP ProBook range (announced today in the US), the 4710s specifically, are able to be ordered with SuSE 11 installed. There are no announcements for Australia yet, and also no guarantees they will have the same OS options here. Product specs are here :- http://h71016.www7.hp.com/dstore/SubFamMatrix.asp?ProductLineId=539FamilyId=3025jumpid=re_R295_store/busproducts/computing-notebook/hp-probook-notebook-pcpsn=notebooks_tablet_pcs/notebook_pcs And yes, I do find it a little frustrating that they aren't more comprehensive in the Linux support across the range. Regards, Martin martinvisse...@gmail.com On Fri, Apr 17, 2009 at 1:45 PM, Erik de Castro Lopo mle+s...@mega-nerd.com wrote: Hi all, Does anyone here in .au actually ship higher end laptops with Linux pre-installed? Dell does in  the US, but not here. I've also searched the  HP website, but that is even harder to navigate than the Dell site. Erik -- -- Erik de Castro Lopo http://www.mega-nerd.com/ -- SLUG - Sydney Linux User's Group Mailing List - http://slug.org.au/ Subscription info and FAQs: http://slug.org.au/faq/mailinglists.html -- SLUG - Sydney Linux User's Group Mailing List - http://slug.org.au/ Subscription info and FAQs: http://slug.org.au/faq/mailinglists.html
Re: [SLUG] Re: Linux netbook? (Marghanita da Cruz)
When I have had my notebooks repaired I have actually sent them without the hard-disk. I mainly do that on the basis of the fact that 1. I need access to my data 2. I don't want to give the repairer that same access. Of course this isn't quite as easy with the flash based system. ( I know the Asus EEE 901 16GB SSD is removable, but I think the 4GB system drive is not user removable). Regards, Martin martinvisse...@gmail.com -- SLUG - Sydney Linux User's Group Mailing List - http://slug.org.au/ Subscription info and FAQs: http://slug.org.au/faq/mailinglists.html
Re: [SLUG] IPMISensors
The Linux Cross Reference is really good for this. Hitting http://lxr.linux.no/linux+v2.6.18/+search=IPMI; would indicate the answer is yes (through whether you need to switch it on during the configuration is left as an exercise for the reader). Regards, Martin martinvisse...@gmail.com On Mon, Apr 27, 2009 at 5:49 AM, Kyle k...@attitia.com wrote: Can anyone tell me off the top of their head pls, whether IPMISensors and the relevant necessary modules are compiled in, or already automatically loaded into 2.6.18 Kernels. I know the IPMISensors page tells me some form of patch is necessary. But you can never tell with these pages how present they are. It's possible the whole thing has already been added to the source tree. -- Kind Regards Kyle -- SLUG - Sydney Linux User's Group Mailing List - http://slug.org.au/ Subscription info and FAQs: http://slug.org.au/faq/mailinglists.html -- SLUG - Sydney Linux User's Group Mailing List - http://slug.org.au/ Subscription info and FAQs: http://slug.org.au/faq/mailinglists.html
Re: [SLUG] [Fwd: Re: Computers software for schools]
On Fri, Apr 3, 2009 at 9:43 AM, lloyd l...@aapt.net.au wrote: Apart from Heracles, does anyone know who marketed Linux FOSS to the NSW Department of Education prior to this decision? This is obviously relevant to statements about Linux not compete. I think we can be sure that the competition to Linux were backed by substantial if not huge marketing expenditure. I know for certain that at least one major vendor did have Linux as a key part of their bid for this tender. I would be very surprised if there were not more than one. Regards, Martin martinvisse...@gmail.com -- SLUG - Sydney Linux User's Group Mailing List - http://slug.org.au/ Subscription info and FAQs: http://slug.org.au/faq/mailinglists.html
Fwd: [SLUG] [Fwd: Re: Computers software for schools]
On Thu, Apr 2, 2009 at 1:47 PM, Marghanita da Cruz marghan...@ramin.com.au wrote: The deal with Microsoft is a world-first in student licensing, based on a per student approach rather than licensing per device. http://www.premier.nsw.gov.au/Newsroom/Articles/2009/April/090401_The_digital_education_revolution_is_here.html When I look at the formatting of that press release, it hurts my eyes. With the unbalanced apostrophes and single sentence paragraphs, it almost appears as a failed experiment in avant-garde rap poetry. The lack of attention to detail, and it has been published for two days now, doesn't give one any confidence that the Premier's Department understands how to effectively communicate using the intarwebs. At the very least their is an opportunity for a savvy open-source consultant to propose a decent content management system. Regards, Martin martinvisse...@gmail.com -- SLUG - Sydney Linux User's Group Mailing List - http://slug.org.au/ Subscription info and FAQs: http://slug.org.au/faq/mailinglists.html
Re: [SLUG] Sound Problem
Uggh, I missed that bit in Malcolm's post. Yes, If you are using a 2.4 kernel you definitely should be considering an upgrade. There is a lot of magic in the newer 2.6.x kernel and associated system tools that are going to make your life easier in this regard. Also not really wanting to start a distro war (and I cut my teeth on SLS and then Slackware 1.0 back around 1992/93), but you might want to choose something other Slackware if you are an inexperienced user. http://distrowatch.com/stats.php?section=popularity really puts Slackware as being outside the mainstream. You are much more likely to get useful support if choose from the top 10 in that list. (And yes, the street cred that in particular Gentoo seems to have, but I still would consider that as non mainstream). Of course there are other criteria than popularity for choosing a distro, but it should be a major consideration for novices). Regards, Martin martinvisse...@gmail.com On Wed, Apr 1, 2009 at 6:26 PM, Henare Degan henare.de...@gmail.com wrote: On Wed, Apr 1, 2009 at 11:04, Martin Visser martinvisse...@gmail.com wrote: For most Linux distros and sound cards these days it should just work so I imagine you must have something special. I'd say the something special might be the 2.4 kernel not having the drivers for the newer audio hardware? Slackware 11 can get 2.6 but maybe it's time to try 12 (with default 2.6 kernel). Cheers, h -- SLUG - Sydney Linux User's Group Mailing List - http://slug.org.au/ Subscription info and FAQs: http://slug.org.au/faq/mailinglists.html -- SLUG - Sydney Linux User's Group Mailing List - http://slug.org.au/ Subscription info and FAQs: http://slug.org.au/faq/mailinglists.html
Re: [SLUG] Sound Problem
Not being a Slackware user, I don't know the specifics of your issue. In order to give potential advisers a clue, we would at a minimum need to know the model of motherboard, and hence hopefully the onboard sound chipset you are using. Also if you post the result of lspci, filtering out the device line that would seem to pertain to the soundcard it might help. (BTW, when you said you replaced a Intel Celeron with an AMD Athlon CPU, you *must* have also had the motherboard replaced at the same time). For most Linux distros and sound cards these days it should just work so I imagine you must have something special. Regards, Martin martinvisse...@gmail.com On Wed, Apr 1, 2009 at 9:20 PM, Malcolm Johnston dr...@internode.on.net wrote: PS: I should also add that the distribution is Slackware 11, with a 2.4.33.3 kernel, and that the bootdisk is sata.i, which is one of the vanilla bootdisks for the sort of hardware setup I have described. Malcolm Johnston -- SLUG - Sydney Linux User's Group Mailing List - http://slug.org.au/ Subscription info and FAQs: http://slug.org.au/faq/mailinglists.html -- SLUG - Sydney Linux User's Group Mailing List - http://slug.org.au/ Subscription info and FAQs: http://slug.org.au/faq/mailinglists.html
Re: [SLUG] Sound Problem
Posting reply back to list (for others to chime in on) Malcolm, You need to find the Terminal application (possibly in the Accessories menu). The simply run lspci | grep -i audio and post the results back to the list. (Another alternative, again to be run in a terminal, is lshw -class multimedia ) I would be surprised if neither of these give a result. Regards, Martin martinvisse...@gmail.com On Wed, Apr 1, 2009 at 11:05 PM, Malcolm Johnston dr...@internode.on.net wrote: On Wednesday 01 April 2009 00:04, you wrote: Not being a Slackware user, I don't know the specifics of your issue. In order to give potential advisers a clue, we would at a minimum need to know the model of motherboard, and hence hopefully the onboard sound chipset you are using. Also if you post the result of lspci, filtering out the device line that would seem to pertain to the soundcard it might help. (BTW, when you said you replaced a Intel Celeron with an AMD Athlon CPU, you *must* have also had the motherboard replaced at the same time). For most Linux distros and sound cards these days it should just work so I imagine you must have something special. Regards, Martin martinvisse...@gmail.com On Wed, Apr 1, 2009 at 9:20 PM, Malcolm Johnston dr...@internode.on.net wrote: PS: I should also add that the distribution is Slackware 11, with a 2.4.33.3 kernel, and that the bootdisk is sata.i, which is one of the vanilla bootdisks for the sort of hardware setup I have described. Malcolm Johnston -- SLUG - Sydney Linux User's Group Mailing List - http://slug.org.au/ Subscription info and FAQs: http://slug.org.au/faq/mailinglists.html Hi Martin, Thanks for the reply. Â It was the Pentium 4 (and motherboard) that replaced the AMD stuff. Â Is there a way I can probe for the chipset? Â It's a bit hard to get info out of the guy who did the work as his English isn't very good. As you say, it should just work anyway. Â There is an ALSA message on boot to the effect that there is no declared state for the sound card, but my understanding is that ALSA is not the basic driver set. Â Could you possibly amplify on the Ispci command, although I don't think it's on my distro. Cheers, Malcolm Johnston -- SLUG - Sydney Linux User's Group Mailing List - http://slug.org.au/ Subscription info and FAQs: http://slug.org.au/faq/mailinglists.html
Re: [SLUG] Installing 8.04 on a Dell Optiplex GX260 - woe is me
Patrick, 'OS Install Mode' needs to be off to see more than 256MB. My guess is that you have dodgy RAM above the 256MB address space, which you are hiding with the 'OS Install Mode'. Try running the memtest86+ utility from the Ubuntu boot machine. If that shows up flawed memory, try swapping around the SIMMs around in different slots - sometimes you can get subtle timing issues depending on which one is seen first on the memory buses. Regards, Martin martinvisse...@gmail.com On Fri, Mar 27, 2009 at 4:17 PM, elliott-brennan m...@elliott-brennan.id.au wrote: Hi Glenn, That's the problem. It won't allow me to install without switching it on! :( The install failed frequently: Freezes for in excess of 30 minutes, Claims that it couldn't install various packages etc This was the case even though I tried both GUI and text installations and burnt the ISO to disc three times more. As soon as I turned on 'OS Install Mode', it was a clean install within a reasonable length of time. It's been suggested to me that I check out the BIOS version and consider updating it if necessary. If I can bring myself to spend more time on it I may just do that. Pity, because the machine is in excellent condition (I was given two but the second one has some wonky capacitors - slight bulging) Regards, Patrick On 27/03/2009, Glen Turner g...@gdt.id.au wrote: elliott-brennan wrote: What the hell has this been created for? For installing Microsoft Windows NT 4.0 on machines with more the 2GB of RAM. For Linux you can leave Dell's OS Install Mode off. -- Glen Turner http://www.gdt.id.au/~gdt/http://www.gdt.id.au/%7Egdt/ -- SLUG - Sydney Linux User's Group Mailing List - http://slug.org.au/ Subscription info and FAQs: http://slug.org.au/faq/mailinglists.html -- SLUG - Sydney Linux User's Group Mailing List - http://slug.org.au/ Subscription info and FAQs: http://slug.org.au/faq/mailinglists.html
[SLUG] Re: [activities] SLUG Committee elections: progress so far
Sridhar, Is it possible for the wiki to be updated to show the current status of nominees. That is showing the nominated, seconded, accepted or rejected status of candidates or non-candidates? With the recent goings-on it is difficult to keep track of what position we are at in this regard. Regards, Martin martinvisse...@gmail.com On Sun, Mar 8, 2009 at 12:12 AM, Sridhar Dhanapalan srid...@dhanapalan.comwrote: Hi everybody, It's been over a week since nominations were opened for the SLUG Committee elections. So far we only have one person accept their position. There have been two other nominations, but they have not been seconded and so cannot be accepted yet. Here are the statuses of the current nominations: Sridhar Dhanapalan for President http://lists.slug.org.au/archives/activities/2009/03/msg1.html Status: requires seconding Melissa Draper for Secretary http://lists.slug.org.au/archives/activities/2009/02/msg00021.html Status: requires seconding Tim Ansell for Ordinary Committee Member http://lists.slug.org.au/archives/activities/2009/02/msg00022.html Status: accepted We are still in need of candidates to fill all seven positions. The means to nominate a candidate is simple: simply send an e-mail to activit...@slug.org.au in the manner shown in the links above. We also welcome self-nominations. For more detail on the process, see these pages: http://wiki.slug.org.au/2009agm (2009 AGM info) http://wiki.slug.org.au/agm_guide (general guide to the AGM) http://slug.org.au/participation (includes a summary of Committee responsibilities) http://www.slug.org.au/node/112 (Web announcement) http://lists.slug.org.au/archives/announce/2009/03/msg1.html (mail announcement) If you still have questions, feel free to raise them on the Activities list. -- Bring choice back to your computer. http://www.linux.org.au/linux -- SLUG Activities Subscription info and FAQs: http://slug.org.au/faq/mailinglists.html -- SLUG - Sydney Linux User's Group Mailing List - http://slug.org.au/ Subscription info and FAQs: http://slug.org.au/faq/mailinglists.html
Re: [SLUG] Logging the solution to a simple error.
I guess there are a number of things to do:- 1. Post it to this list - provided you sprinkle it with the right keywords, search engines that spider the SLUG mail archives will find it, and then help others looks for similar terms 2. Blog it / twitter it / digg it - pretty much for the same reason above 3. If it is distro specific find the appropriate forum and post there. There may be more permanent FAQ / HOWTO lists you could update 4. If you have found something that could be better documented by a specific application then find out the appropriate package and submit patch. And it doesn't need to be a code patch. If your problem you solved could have been prevented if better documentation was available then there is value in fix the doc. Regards, Martin martinvisse...@gmail.com On Sat, Feb 28, 2009 at 11:44 PM, wbenn...@turing.une.edu.au wrote: Is there someplace where I can log the solution to a simple error? It's not a bug, but it caused me, unnecessarily, to reinstal Ubuntu on the laptop. I wouldn't like anyone else to go through this; so is there someplace where I can log the symptoms and the solution? Regards, Bill Bennett. -- SLUG - Sydney Linux User's Group Mailing List - http://slug.org.au/ Subscription info and FAQs: http://slug.org.au/faq/mailinglists.html -- SLUG - Sydney Linux User's Group Mailing List - http://slug.org.au/ Subscription info and FAQs: http://slug.org.au/faq/mailinglists.html
Re: [SLUG] OLPC hackfest this weekend
wiki.laptop.org is run by OLPC so I suspect it is a major outage (that Pia won't have any control over). Sit tight and I suspect it will be up by our morning. Regards, Martin martinvisse...@gmail.com On Wed, Feb 25, 2009 at 11:22 PM, Erwin Mueller funny...@googlemail.comwrote: Hi, I get a Failed to Connect to this link. On Mon, 2009-02-23 at 13:40 +1100, Pia Waugh wrote: Hi all, Just a quick reminder about the monthly OLPC hacking this weekend. Location will be confirmed by Wednesday, so check out the wiki page for the event here: http://wiki.laptop.org/go/OLPC_Friends/SydneyUG See you all there! Bring your laptops, and add any projects you want to work on to the wiki page. Cheers, Pia -- SLUG - Sydney Linux User's Group Mailing List - http://slug.org.au/ Subscription info and FAQs: http://slug.org.au/faq/mailinglists.html -- SLUG - Sydney Linux User's Group Mailing List - http://slug.org.au/ Subscription info and FAQs: http://slug.org.au/faq/mailinglists.html
Re: [SLUG] Need a lesson in routing [WAS: memory]
Well done Michael! As I indicated earlier in my post, many issues with slow application performance these days are due to waiting for either unanswered queries or getting wrong answers. The quick check of raw throughput (your 10MB transfer in a *blip* proved that) can help you concentrate on the real problem. If you were using a wireshark to look at you application flow you would have seen the IPv6 query going out (but not getting an answer) and then a followup with a working IPv4 query and then a quick response. Regards, Martin martinvisse...@gmail.com On Sat, Feb 21, 2009 at 4:41 PM, Kyle k...@attitia.com wrote: ... OK!!! That is indeed what it does Michael, when it doesn't timeout. I had previously read up on F'Fox and turned on the various turbocharging options, but hadn't thought of ipv6. So I changed network.dns.disableIPv6 to true on the hosts behind the switch and Wow! That's a bit more like what I might expect. ipv6 has always been a bit of a black box I've tried to avoid as long as possible. Guess I need to start reading up on it. Or disabling it! Allow me here to thank each and every one of you that have put up with my ignorance to assist in debugging this issue. I'm not convinced that's all there is to it just yet. For instance, the Linux box is still an order of magnitude faster to load a page, network.dns.disableIPv6 is true by default in T'Bird on the hosts which still timeout on initial connection and all hosts are only using the linux box itself as name server. But where we are now will go a long way to dispersing aggravation in the local browsing community. Thanks again. ipv6 . mumble, groan, must read . pain in th. mumble, groan, ipv6 Kind Regards Kyle Michael Chesterton wrote: Does it sit there for 11 seconds, then load all of a sudden, or does it start loading right from the start? I'm wondering if firefox is doing IPv6 lookups and failing. If you want to test, disable IPv6 in firefox (about:config) or use the same nameservers as the linux router -- SLUG - Sydney Linux User's Group Mailing List - http://slug.org.au/ Subscription info and FAQs: http://slug.org.au/faq/mailinglists.html -- SLUG - Sydney Linux User's Group Mailing List - http://slug.org.au/ Subscription info and FAQs: http://slug.org.au/faq/mailinglists.html
Re: [SLUG] Need a lesson in routing [WAS: memory]
Kyle, a few things. Firstly you talk about 15Kbps. In my mind this reads as 15 thousand bits per second. This is slower than dialup speeds. (A little b is always bits *not* bytes, which is B in communication speek). Even if you meant 15 000 bytes per second (which equate to 150 000 is slow). So I am not sure what you really mean here. Secondly as you seem to have different experience with different applications there is some value in splitting up your testing. The first thing I would do is make sure you are good getting good throughput (goodput) up and down. Your ISP probably has a webserver that will network-wise be close to you (not on the big-bad internet). You want to do a download from there. For instance Internode has a number of files on their mirror (which will be unmetered) specifically for this purpose - http://mirror.internode.on.net/pub/test/10meg.test. Your ISP may have something similar ( I know iiNet does) or even other largeish files like windows security updates that available there for easy update. To test upload speed, your ISP might have provided you with limited personal web space. You get one of those large files and then try uploading it. Firefox reports goodput, but you could also use something like wget. If something seems wrong, you can do a packet capture with wireshark you can get an idea of things like retransmissions, fragmenting and the like. Finally, even with good throughput you may have other application issues. For instance if you app needs to do a DNS look or go elsewhere to verify some credentials before the transfer you can have problems. For instance sshd in its default configuration often causes issues for users because it wants to do a reverse DNS lookup on the address of the connecting client. If your primary DNS can't give that answer (because it is a private unregistered address) then it can take some time to traverse multiple DNS servers before eventually giving up. Similar if your traffic is protected by SSL/TLS and the certificate presented has CRL (certificate revocation list) specified and for some reason it can't access the CRL server it could take 15 seconds or more to time out. To determine if such issues exist you can examine logs for the applications, (which often report that such timeouts, or use wireshark again to infer from the request/response sequence as to whether your app is getting the right answers in a timely manner or not. I'm not saying you have either of this issues, but it is important to try and separate out the layers - the lower ones (physical through transport) would be covered by the first tests, and then more detailed log/protocol examination would let you see any application layer issues. Regards, Martin martinvisse...@gmail.com On Sat, Feb 21, 2009 at 10:44 AM, Chris chris.zhang@gmail.com wrote: Sorry I meant authentication and account information backend. If they are stored in a remote ldap server and the traffic is slow to that server, in my experience it can cause clients to get bad responses. Also can you take off SSL and see if it is faster? Perhaps check syslog for errors on the IMAP server. And supply your private key to wireshark to see the plain traffic. On 21/02/2009, at 9:59 AM, Kyle k...@attitia.com wrote: Not sure I understand you there James. I telnet-ed in to test Peter's theories below. But for good measure, I just tried with openssl as a command too and that responds immediately. I just don't get it. One host behind the server/router is a MAC on OSX with 4GB, another WinXP with 2GB. The WinXP host is by far the worst. But irrespective the MAC is not exactly blindingly quick either. (Both wired connections) Kind Regards Kyle James Polley wrote: you can use openssl s_client in place of telnet to connect - http://www.jaharmi.com/2007/09/26/using_openssl_securely_connect_your_imap_account has a guide. But for good measure Telnetted (and Wiresharked) over both my SSL IMAP port and 25. Both responses come back PDQ. And Wireshark shows traffic moving from one host to the other and return. I'm pretty confident of my iptables setup as I have refined that over a period of years. pe...@chubb.wattle.id.au wrote: So, connexions to the (imap? smtp?) mail server time out. Can you run wireshark on the server, and see what's happening? Does the server have a correct route to the clients? If it's smtp, then try telnet from a client to the server (telnet 192.168.1.1 25) on the inside of the firewall, while watching top on the firewall. What does the load look like? Does the telnet session time out? During which part of the connexion? -- SLUG - Sydney Linux User's Group Mailing List - http://slug.org.au/ Subscription info and FAQs: http://slug.org.au/faq/mailinglists.html -- SLUG - Sydney Linux User's Group Mailing List - http://slug.org.au/ Subscription info and FAQs:
Re: [SLUG] Why would nautilus be using 50%
Maybe, but how does that add up to anything like 4GB (or even 1GB)? Even say 2048x1536x32bit color is only 12MB per background image. Regards, Martin martinvisse...@gmail.com On Fri, Feb 13, 2009 at 2:51 PM, Ken Foskey fos...@tpg.com.au wrote: On Fri, 2009-02-13 at 14:17 +1100, Ken Foskey wrote: My system has begun pausing badly today and Nautilus is running 4 Gig virtual and 1 gig real, this would seem to be part of the problem. There is nothing really obvious on top. Any suggestions? I ended up rebooting and everything is back to normal. Is it possible that Nautilus is holding four copies on the background images? 1 for each desktop (two of them, and I had the images scaled) and it changes on startup, automatically by a script, to one of the other backgrounds. hence 2 desktops, X 2 copies all scaled and therefore stored in Nautilus. -- SLUG - Sydney Linux User's Group Mailing List - http://slug.org.au/ Subscription info and FAQs: http://slug.org.au/faq/mailinglists.html -- SLUG - Sydney Linux User's Group Mailing List - http://slug.org.au/ Subscription info and FAQs: http://slug.org.au/faq/mailinglists.html
Re: [SLUG] LPI training
Geoffrey Robertson used to run LPI oriented courses at Granville TAFE - http://www.gonzo.edu.au/moodle/ I'm not sure what has happened with these. Regards, Martin martinvisse...@gmail.com On Tue, Feb 3, 2009 at 9:34 PM, Ben shadr...@gmail.com wrote: I have a friend who's working for a company that's willing to pay for Linux training and certification. He's pretty green so I thought starting with the LPI and working for a year or so before trying for the RHCE would be a good idea. The only real person training we can find for LPI is from SIMT: http://www.simt.nsw.edu.au/ Has anyone used SIMT? or know of any alternative live/real person training that would be equivalent? Ben -- SLUG - Sydney Linux User's Group Mailing List - http://slug.org.au/ Subscription info and FAQs: http://slug.org.au/faq/mailinglists.html -- SLUG - Sydney Linux User's Group Mailing List - http://slug.org.au/ Subscription info and FAQs: http://slug.org.au/faq/mailinglists.html
Re: [SLUG] Apps hanging when writing to /dev/log
Sure about that? I am sending syslog to it from our router ;-) Regards, Martin martinvisse...@gmail.com On Fri, Jan 30, 2009 at 2:52 PM, Jeremy Visser jeremy.vis...@gmail.comwrote: On Fri, Jan 30, 2009 at 3:01 AM, Michael Chesterton che...@chesterton.id.au wrote: If you haven't already, you could attach strace to syslogd and see what it's up to, from memory it's strace -p pid Good idea. From looking at the man page, it's `strace -ppid` without a space. That would be very handy for stepping in when the problem occurs, rather than having to stab in the dark, setting up a test environment, hoping to trigger the bug. also, (if you haven't already) you could try googling syslogd hanging http://lkml.org/lkml/2005/3/26/37 Interesting reading about the ctime() stuff. I'll definitely know if that's the problem, from looking at strace's output. -- SLUG - Sydney Linux User's Group Mailing List - http://slug.org.au/ Subscription info and FAQs: http://slug.org.au/faq/mailinglists.html -- SLUG - Sydney Linux User's Group Mailing List - http://slug.org.au/ Subscription info and FAQs: http://slug.org.au/faq/mailinglists.html
Re: [SLUG] comparing directory trees
Another way to compare two trees and to report on difference is to use rsync in --dry-run mode. Normally rsync is used to make a an archive copy from one directory to another (sometimes on different hosts) For example given two directory trees dt and rt, you could pretend to archive them, but only do a dry run, and have rsync report what it would have done. Note that rsync normally looks for differences and only transfers the differences. You can get rsync to report what it is doing, either during the archive with --verbose (multiple leves even) , or at the end give a summary with --itemize-changes. You also would need to transpose the source and destination directories to make sure you cover the differences in both directions. (I know the output is a little terse, but at least you can have a succinct summary of files that need to be investigated) In the example below the file a/1 has a different timestamp between the two dirs, and the directory b and file b/7 are in dt, but not rt. ma...@glenstorm:/tmp$ ls -R dt dt: 0 1 2 a b dt/a: 1 2 dt/b: 7 ma...@glenstorm:/tmp$ ls -R rt rt: 0 1 2 a rt/a: 1 2 ma...@glenstorm:/tmp$ rsync --archive --verbose --dry-run dt/ rt/ building file list ... done ./ a/1 b/ b/7 sent 201 bytes received 44 bytes 490.00 bytes/sec total size is 0 speedup is 0.00 ma...@glenstorm:/tmp$ rsync --archive --verbose --verbose --itemize-changes --dry-run dt/ rt/ building file list ... done delta-transmission disabled for local transfer or --whole-file .d..t.. ./ .f 0 .f 1 .f 2 .d a/ f..t.. a/1 .f a/2 cd+ b/ f+ b/7 total: matches=0 hash_hits=0 false_alarms=0 data=0 sent 231 bytes received 74 bytes 610.00 bytes/sec total size is 0 speedup is 0.00 ma...@glenstorm:/tmp$ rsync --archive --verbose --verbose --dry-run dt/ rt/ building file list ... done delta-transmission disabled for local transfer or --whole-file ./ 0 is uptodate 1 is uptodate 2 is uptodate a/1 a/2 is uptodate b/ b/7 total: matches=0 hash_hits=0 false_alarms=0 data=0 sent 231 bytes received 74 bytes 610.00 bytes/sec total size is 0 speedup is 0.00 ma...@glenstorm:/tmp$ rsync --archive --itemize-changes --dry-run dt/ rt/ .d..t.. ./ f..t.. a/1 cd+ b/ f+ b/7 ma...@glenstorm:/tmp$ rsync --archive --verbose --verbose --dry-run dt/ rt/ building file list ... done delta-transmission disabled for local transfer or --whole-file ./ 0 is uptodate 1 is uptodate 2 is uptodate a/1 a/2 is uptodate b/ b/7 total: matches=0 hash_hits=0 false_alarms=0 data=0 sent 231 bytes received 74 bytes 610.00 bytes/sec total size is 0 speedup is 0.00 ma...@glenstorm:/tmp$ rsync --archive --verbose --verbose --itemize-changes --dry-run dt/ rt/ building file list ... done delta-transmission disabled for local transfer or --whole-file .d..t.. ./ .f 0 .f 1 .f 2 .d a/ f..t.. a/1 .f a/2 cd+ b/ f+ b/7 total: matches=0 hash_hits=0 false_alarms=0 data=0 sent 231 bytes received 74 bytes 610.00 bytes/sec total size is 0 speedup is 0.00 Regards, Martin martinvisse...@gmail.com On Wed, Jan 21, 2009 at 1:10 PM, Daniel Pittman dan...@rimspace.net wrote: david da...@kenpro.com.au writes: I have a directory tree, plus an approximate copy of the same tree. du reports 35mb for one and 36 for the other. They are quite complex trees. My task is to figure out where and why they are different. Is there a simple way to do this? A kind of diff for directories/files/filesizes. ] apt-cache show komparator Package: komparator Priority: optional Section: kde Installed-Size: 1252 Maintainer: Debian KDE Extras Team pkg-kde-ext...@lists.alioth.debian.org Architecture: amd64 Version: 0.9-1 Depends: kdelibs4c2a (= 4:3.5.8.dfsg.1-5), libc6 (= 2.7-1), libgcc1, libqt3-mt (= 3:3.3.8b), libstdc++6 (= 4.1.1-21) Filename: pool/main/k/komparator/komparator_0.9-1_amd64.deb Size: 486170 MD5sum: 0f1148b7ce4fd922f8255cbc9c8525ff SHA1: 00f1f3a7368949602f06dc2c832e36ab84cb4c4d SHA256: 5d5e2b5cf644a3287a037a3fdb30e87d2d128e6762aa42d1c0a38f2c4836d614 Description: directories comparator for KDE Komparator is an application that searches and synchronizes two directories. It discovers duplicate, newer or missing files and empty folders. It works on local and network or kioslave protocol folders. Homepage: http://komparator.sourceforge.net Tag: implemented-in::c++, interface::x11, role::program, scope::utility, suite::kde, uitoolkit::qt, use::scanning, use::synchronizing, works-with::file, x11::application I presume there is a GNOME based equivalent, but that might help if a trivial diff doesn't. Regards, Daniel -- SLUG - Sydney Linux User's Group Mailing List - http://slug.org.au/ Subscription info and FAQs: http://slug.org.au/faq/mailinglists.html -- SLUG - Sydney Linux User's Group Mailing List - http://slug.org.au/
Re: [SLUG] ok Probably the dumbest question I've ever asked
Not sure of the exact processor type you have, and assuming you mean the CPU fan/heatsink, the following link should have what you need - http://h10025.www1.hp.com/ewfrf/wc/document?docname=bph07139lc=endlc=ficc=filang=fiprintable=noproduct=426178 Regards, Martin martinvisse...@gmail.com On Mon, Jan 19, 2009 at 10:13 PM, Bruce bbr...@unwired.com.au wrote: ... but does anyone know how to unclip the cooling fan from an HP Pavilion t680a? The fins are chokka with dust, hair, pizza, etc. It boots, runs and overheats. But otherwise appears stable ( :-) ) If I can get the d*mn fan off I am sure (?) that I can solve the heating problem. tia bruce -- SLUG - Sydney Linux User's Group Mailing List - http://slug.org.au/ Subscription info and FAQs: http://slug.org.au/faq/mailinglists.html -- SLUG - Sydney Linux User's Group Mailing List - http://slug.org.au/ Subscription info and FAQs: http://slug.org.au/faq/mailinglists.html
Re: [SLUG] Advice on upgrading.
Having 768M of RAM, a 1.5GHz and a 120GHz for running Linux sounds pretty optimal. Unless you are a real power-user (read gamer/ heavy graphics/video/sound editoring I'd be suprised you are hitting hard limits. More memory will generally improve things, but it will only be of marginal benefit if you still of plenty of if you currently have lots of available buffers and/or cache. If your CPU is regularly 100% busy in system/user space you may simply need a faster CPU. I would suggest running vmstat (install package procps if not there) while you are doing things when you think the machine is slow. You could even run say vmstat 1 60 and paste the results back to the list. (This dumps vmstat statistics at 1 second intervals for 60 seconds). This will help show if you are running out of memory, if swap is being hit hard, how much disk i/o are using, and how busy the cpu is (including if is waiting on i/o a lot). A good idea is to run vmstat, watch it for 5 seconds (to get a baseline), then do what ever it is you are concerned about, and then let the machine idle again. If you can run this in a window (using always on top) you can see how your system is performing in real-time. Regards, Martin martinvisse...@gmail.com On Fri, Jan 2, 2009 at 1:37 PM, wbenn...@turing.une.edu.au wrote: I have a laptop,a Fujistu S Series Lifebook running Hardy Heron. I've been told that it would run faster if I added to the memory and/or changed the hard disc. I'm happy to do so, but I'm seeking advice to avoid mistakes, or, since it's my case, large mistakes. I ran lshw and append the result. Can anyone advise on the best way to make my laptop go faster, please? Regards, Bill Bennett. -- SLUG - Sydney Linux User's Group Mailing List - http://slug.org.au/ Subscription info and FAQs: http://slug.org.au/faq/mailinglists.html -- SLUG - Sydney Linux User's Group Mailing List - http://slug.org.au/ Subscription info and FAQs: http://slug.org.au/faq/mailinglists.html
Re: [SLUG] Re: borrowing/renting external box for an ATA drive
Amos, It's clearly not a real motherboard ;-) Seriously, there really isn't any need for IDE/PATA any more. However all boards I have seen seem to sport at least one of them, I think mainly because CD/DVD drives seemed to be problematic with SATA (particularly booting). Anyway assuming that is sorted with a modern BIOS and OS then IDE can go the way of floppies - but wait, why on earth does the Dell motherboard need a floppy interface!! (I am pretty sure HP just doesn't ship anything with them anymore). Regards, Martin martinvisse...@gmail.com On Tue, Dec 30, 2008 at 4:09 PM, Amos Shapira amos.shap...@gmail.comwrote: 2008/12/30 jam j...@tigger.ws: I'm fascinated in the extreem, what sort of motherboard is there in your desktop ? James It's a Dell Dimention E520 bought in end-of-financial year sale. To try to satisfy your curiosity I attach a link to an image of the mobo here: http://imagebin.ca/view/Irf9scl2.html The closest thing to look to like an IDE connector is at the centre near the bottom, half hidden by the longer extension card. The label on the mobo next to it says Floppy. I dug up its specifications from here: http://supportapj.dell.com/support/edocs/systems/dimE520/en/SM_EN/specs.htm Under drives-Available Devices it reads: Serial ATA drives (4), floppy drive, USB memory devices, CD/DVD drive, and Media Card Reader. The CD-ROM is SATA too (from visual inspection). Is anyone else here feels the same as Jam that it's unlikely that I have a mobo without an old-style parallel ATA controller? Cheers, --Amos -- SLUG - Sydney Linux User's Group Mailing List - http://slug.org.au/ Subscription info and FAQs: http://slug.org.au/faq/mailinglists.html -- SLUG - Sydney Linux User's Group Mailing List - http://slug.org.au/ Subscription info and FAQs: http://slug.org.au/faq/mailinglists.html
Re: [SLUG] borrowing/renting external box for an ATA drive
Amos, It is pretty unlikely that you won't have PATA controllers in your desktop - they will probably be called IDE. (PATA is a term not used often - usually only when people wish to distinguish the drives from SATA) Martin Regards, Martin martinvisse...@gmail.com On Mon, Dec 29, 2008 at 10:43 PM, Amos Shapira amos.shap...@gmail.comwrote: Hello, My wife asked me to re-install her Windows partition and in the process both PATA drives on her desktop (including both Windows and Ubunutu) started to give weird errors and can't be accessed any more. I tried using sysrescuecd 1.0 and the ubuntu cd in rescue mode but all give similar errors, on both drives. Since it seems highly unlikely to me that both drives became bad at exactly the same time (they have a few years difference in their age, different make, model and size) I suspect that the problem is with the motherboard or ATA controller. My own desktop is about 18 months old and I don't see mention of PATA controllers in its lshw or lspci output. Does anyone know where can I borrow (or maybe rent?) a PATA-usb box to allow me to access the disks and salvage the data from them? (and before anyone tells me again - we bought a USB drive this weekend together with a Windows Vista laptop and will start following Marry's advise to back things up). Thanks, --Amos -- SLUG - Sydney Linux User's Group Mailing List - http://slug.org.au/ Subscription info and FAQs: http://slug.org.au/faq/mailinglists.html -- SLUG - Sydney Linux User's Group Mailing List - http://slug.org.au/ Subscription info and FAQs: http://slug.org.au/faq/mailinglists.html
Re: [SLUG] Re: Merry Christmas and why did I get a message saying I had 4% of my HDD space left?
When you had this problem did you do a df to check out all your filesystems. Particularly if you have a small filesystem for holding /tmp (it might be infact using tmpfs), then a reboot would fix the problem. If your mail program needs to use temporary files for moving things around, running out of /tmp would mean bad things could occur. Regards, Martin martinvisse...@gmail.com On Sat, Dec 27, 2008 at 2:21 PM, elliott-brennan elliottbren...@gmail.comwrote: Thanks everyone. I've a bit to chew on and so will get to it. I had a message underneath the '4%' message of which I could only read a couple of words. I've just had the same message. Thunderbird would not down load new mail: 'Unable to write the email to the mailbox. Make sure the file system allows you write privileges, and you have enough disk space to copy the mailbox' I tried one googled suggestion which was to 'chown' the /home/name/.mozilla-thunderbird file Simultaneously, when I went to use Konqueror as a super user kdesu konqueror I got a message saying it couldn't connect to x-server : 0 manually 'chown'-ing the Thunderbird file didn't work. I ended up rebooting and it seems fine. One thing I have noticed is that each time I've used my bluetooth adapter, I've had other odd problems (eg. shutdown only occurs if I press any key on the keyboard, as if after going to shutdown it requires 'assistance' to close. All of this is quite odd. Dapper was very stable - machine would be on for weeks at a time. 8.04 seems rather less so. This is rather frustrating and makes me wonder whether I should shut the machine down each night. These experiences are rather, urm...cough...Windows like :) Again, any help is most appreciated. Regards, Patrick -- Registered GNU/Linux User 368634 -- SLUG - Sydney Linux User's Group Mailing List - http://slug.org.au/ Subscription info and FAQs: http://slug.org.au/faq/mailinglists.html -- SLUG - Sydney Linux User's Group Mailing List - http://slug.org.au/ Subscription info and FAQs: http://slug.org.au/faq/mailinglists.html
Re: [SLUG] Bentley Car Manuals
Assuming that what you are buying is that which is referred to here - https://wiki.bentleypublishers.com/display/ebahndesktop/Minimum+System+Requirements- I would say you are taking a risk. While it does mention IE6 is supported and there are mechanisms to run IE6 on Linux, who knows what other ActiveX controls or other operating or file system dependencies exist. Their FAQ explicitly states Macs aren't supported - so it is unlikely Linux will be. That doesn't say it won't work of course - just unsupported. Maybe you can convince the manufacturer to ship a content-cutdown CD for you to test it out with? Regards, Martin [EMAIL PROTECTED] On Mon, Dec 8, 2008 at 7:15 PM, Jonathan [EMAIL PROTECTED] wrote: Hi All, Has anyone ever used a CD version of a Bentley car manual on Linux? It's pretty expensive, and needs to be specially imported from half way round the world (for my car) So I don't want to go to the trouble and expense for something not likely to work. Thanks Jon -- SLUG - Sydney Linux User's Group Mailing List - http://slug.org.au/ Subscription info and FAQs: http://slug.org.au/faq/mailinglists.html -- SLUG - Sydney Linux User's Group Mailing List - http://slug.org.au/ Subscription info and FAQs: http://slug.org.au/faq/mailinglists.html
Re: [SLUG] Garmin GPS
Kevin, While I understand and even share your frustration, the reality is that it is up to the product vendor to make a commercial decision of where to invest their software development energy. I'm not sure about what the Universal logo on the packet implied, but I tend to take a pragmatic view that if it doesn't mention Linux, you can't rely on the vendor support, and you can just hope that is being supported by the community at best effort. The reality for Garmin is that they feel they need to develop their own proprietary product (differentiating themselves from the competition) and they probably feel that 90% of their market is PC, 5% windows Mac OS, and that leaves them with needing to make a purely financial decision around Linux. I'd love to see a fully-supported Linux version from Garmin, preferably open-source, and they would get some street cred for doing this, but I am not holding my breath. They really don't have obligation to do this. (Of course you could boycott Garmin, but then you probably are going to get the same from competitors like Magellan). I have an older Garmin, and I have to update my maps with MapSource using Windows. I can cope with that. On the other hand if I want to clever stuff, such as downloading tracklogs, filtering by date and converting them to kml for viewing on Google Maps, I use fully open-source software like gpsbabel which works great. There does appear to at least some Wine support for Garmin's MapSource with some versions - http://appdb.winehq.org/appview.php?iAppId=227. I haven't tried this, YMMV. Regards, Martin [EMAIL PROTECTED] On Fri, Dec 5, 2008 at 12:02 AM, Kevin Shackleton [EMAIL PROTECTED]wrote: SLUGers I apologise for a couple of emails I just bashed out. On wrapping up this topic I realise I should have first asked SLUG if the group was OK with the attack I made on Garmin Support before I launched it. Kevin -- SLUG - Sydney Linux User's Group Mailing List - http://slug.org.au/ Subscription info and FAQs: http://slug.org.au/faq/mailinglists.html -- SLUG - Sydney Linux User's Group Mailing List - http://slug.org.au/ Subscription info and FAQs: http://slug.org.au/faq/mailinglists.html
Re: [SLUG] Best of breed LDAP/directory servers in 2008?
I imagine in the commercial sphere Novell eDirectory would be the one with the most runs on the board. Regards, Martin [EMAIL PROTECTED] On Thu, Nov 20, 2008 at 11:28 AM, Jeremy Portzer [EMAIL PROTECTED] wrote: Hello, Does anyone have any recent experience with LDAP deployments across reasonably large environments (we have 1000+ hosts)?We use LDAP for traditional Unix host authentication/authorization, as well as various other web apps. We currently use Fedora Directory Server but are having many problems with its multimaster replication, and have hit some walls in troubleshooting it. While I believe we probably can fix it, management has asked for us to consider other directory server products (including commercial ones), if they would offer better features and long-term support. I'm wondering if anyone can offer their recent LDAP deployment experiences? Our requirements: * Multimaster replication (or similar) for cluster deployment across diverse geographical sites * Scalability to 1000's of hosts * Some sort of GUI administration (I guess web-based would be preferred; Fedora DS's Java-based admin tool is acceptable but painful to set up, and very slow over LANs) * Runs on RHEL, preferably playing nice with other apps on the same host(s) * Sane backup, disaster recovery, and upgrade procedures Commercial support availability is not a specific requirement, but is something we'd consider if it has good cost/benefit so I'd be interested in any thoughts on that also. (Note: head office is in the US, so AU-based support not really necessary) Thanks, --Jeremy -- SLUG - Sydney Linux User's Group Mailing List - http://slug.org.au/ Subscription info and FAQs: http://slug.org.au/faq/mailinglists.html -- SLUG - Sydney Linux User's Group Mailing List - http://slug.org.au/ Subscription info and FAQs: http://slug.org.au/faq/mailinglists.html
Re: [SLUG] Steve Ballmer live rally Sydney November 6
Clearly the keywords in the rally title, liberation and freedom of software make it more than appropriate ;-) On Sun, Nov 2, 2008 at 6:40 AM, Robert Collins [EMAIL PROTECTED]wrote: On Sat, 2008-11-01 at 23:23 +1100, Gerard Kelly wrote: Hey All, Microsoft's CEO Steve Ballmer will be hosting a live rally in Sydney on November 6th. ... Make a note in your diary now and be watching at the dawn of a new age of freedom. ... In what psychotic world did you imagine this was ontopic for a linux users group list? -Rob -- GPG key available at: http://www.robertcollins.net/keys.txt. -- SLUG - Sydney Linux User's Group Mailing List - http://slug.org.au/ Subscription info and FAQs: http://slug.org.au/faq/mailinglists.html -- Regards, Martin [EMAIL PROTECTED] -- SLUG - Sydney Linux User's Group Mailing List - http://slug.org.au/ Subscription info and FAQs: http://slug.org.au/faq/mailinglists.html
Re: [SLUG] Australian State May Give Students Linux Laptops
I read The Australian article yesterday, and while certainly promising, it also is very indefinite. In typical Slashdot fashion the could and considered in the original article become will on Slashdot On Wed, Oct 15, 2008 at 9:19 PM, Richard Ibbotson [EMAIL PROTECTED] wrote: Hmmm.. http://news.slashdot.org/article.pl?sid=08/10/14/2125233from=rss found this from the web page that I just created... http://www.sheflug.org.uk/news -- Richard -- SLUG - Sydney Linux User's Group Mailing List - http://slug.org.au/ Subscription info and FAQs: http://slug.org.au/faq/mailinglists.html -- Regards, Martin [EMAIL PROTECTED] -- SLUG - Sydney Linux User's Group Mailing List - http://slug.org.au/ Subscription info and FAQs: http://slug.org.au/faq/mailinglists.html
Re: [SLUG] Comp TIA+ / CLP
In order to sit for the LPIC 101 and 102 exams basically used the LPI Linux Certification in a Nutshell book from O'Reilly - http://oreilly.com/catalog/9780596005283/ as well as the exam prep material from https://www.lpi.org/eng/certification/the_lpic_program/lpic_1 Regards, Martin -- SLUG - Sydney Linux User's Group Mailing List - http://slug.org.au/ Subscription info and FAQs: http://slug.org.au/faq/mailinglists.html
Re: [SLUG] Re: opening a photo in GIMP
Patrick/Chris, So any idea of what the root issue was? Every camera produced JPEG these days has an EXIF header. It would seem that the camera is in need of a firmware upgrade if it is writing bodgy EXIF (or less likely that GIMP has encountered an EXIF field not properly handled) Martin On Sat, Sep 13, 2008 at 12:59 PM, elliott-brennan [EMAIL PROTECTED] wrote: I've already written directly to Chris, who sent me a copy of one of the photos he's having problems with. Thought other people might like to know of one solution. Strip out the EXIF (1) data in the photo and all is well. Imagemagick will do this for you: mogrify -strip name of file Or for every photo in the directory, use: mogrify -strip *.jpg (or whatever the extension is). Regards, Patrick (1) Wikipedia: EXIF http://en.wikipedia.org/wiki/EXIF [SLUG] opening a photo in GIMP Chris Allen [EMAIL PROTECTED] Sun, 07 Sep 2008 11:12:10 +1000 I have copied a set of photos from my digital camera for re-processing in GIMP. GIMP says it can't open them. Plug-in could not open image They are all JPG files 0372 x 2305 pixels (2.93 MB) Can any one advise how to resolve this problem (or a better forum)? PS I have no trouble viewing them on screen. However I need to reduce their size for us in ID cards and and posting to the web. -- Registered GNU/Linux User 368634 -- SLUG - Sydney Linux User's Group Mailing List - http://slug.org.au/ Subscription info and FAQs: http://slug.org.au/faq/mailinglists.html -- Regards, Martin Martin Visser -- SLUG - Sydney Linux User's Group Mailing List - http://slug.org.au/ Subscription info and FAQs: http://slug.org.au/faq/mailinglists.html
Re: [SLUG] opening a photo in GIMP
Chris, That message seems a little bizarre. Gimp will open ordinarily open JPEG files natively, and thus shouldn't use a plugin to do this. You may have somehow messed up some configuration settings - and it is using an inappropriate import plugin. Assuming that you don't have any setting or personal Gimp scripts that you want to keep, you can remove your personal settings for gimp with the command rm -rf ~/.gimp*. (Or simply renaming the .gimp-* directory to say .gimp-old) They when you launch gimp again it should create fresh and default settings. If that doesn't work, you may want to use your software package managerf to remove and reinstall gimp (and possible clean your personal settings again). BTW do you get the same issue when say opening PNG files? Martin On Sun, Sep 7, 2008 at 11:12 AM, Chris Allen [EMAIL PROTECTED] wrote: I have copied a set of photos from my digital camera for re-processing in GIMP. GIMP says it can't open them. Plug-in could not open image They are all JPG files 0372 x 2305 pixels (2.93 MB) Can any one advise how to resolve this problem (or a better forum)? PS I have no trouble viewing them on screen. However I need to reduce their size for us in ID cards and and posting to the web. -- Chris Allen [EMAIL PROTECTED] -- SLUG - Sydney Linux User's Group Mailing List - http://slug.org.au/ Subscription info and FAQs: http://slug.org.au/faq/mailinglists.html -- Regards, Martin Martin Visser -- SLUG - Sydney Linux User's Group Mailing List - http://slug.org.au/ Subscription info and FAQs: http://slug.org.au/faq/mailinglists.html
Re: [SLUG] route traffic through multiple interfaces
Correct, even uncompressed VoIP would use around 36MB an hour (each direction). So if you have say a 5GB data allowance (and assuming you cound both directions), you could get around 70 hours of talk time using without exceeding quota. On Mon, Sep 8, 2008 at 11:18 AM, Chris Zhang [EMAIL PROTECTED] wrote: On Mon, Sep 8, 2008 at 10:30 AM, Alex Samad [EMAIL PROTECTED] wrote: On Fri, Sep 05, 2008 at 02:02:25PM +1000, Chris Zhang wrote: On Fri, Sep 5, 2008 at 11:16 AM, Daniel Pittman [EMAIL PROTECTED] wrote: Chris Zhang [EMAIL PROTECTED] writes: Hi Daniel, You were correct in guessing what I was after. I am trying to get VOIP working over 3G. Silly question but isn't voip data more expensive than normal call costs That'd depend. Most people will have a couple of hundred MB 3G download allowance thrown in. According to http://www.fring.com/fring_is/why_fring/ , VOIP usage is really not much. [snip] -- I am here to make an announcement that this Thursday, ticket counters and airplanes will fly out of Ronald Reagan Airport. - George W. Bush 10/03/2001 Washington, DC -BEGIN PGP SIGNATURE- Version: GnuPG v1.4.9 (GNU/Linux) iEYEARECAAYFAkjEch0ACgkQkZz88chpJ2MDmwCgoDzi6QBXmFkjI09ly+G3aO1O sVUAoLZXuipHMltBH6aDsqoPbehnahGP =sZcO -END PGP SIGNATURE- -- SLUG - Sydney Linux User's Group Mailing List - http://slug.org.au/ Subscription info and FAQs: http://slug.org.au/faq/mailinglists.html -- SLUG - Sydney Linux User's Group Mailing List - http://slug.org.au/ Subscription info and FAQs: http://slug.org.au/faq/mailinglists.html -- Regards, Martin Martin Visser -- SLUG - Sydney Linux User's Group Mailing List - http://slug.org.au/ Subscription info and FAQs: http://slug.org.au/faq/mailinglists.html
Re: [SLUG] Web Interface for slug mail?
That's what I though gmail was for ;-). With near infinite mailbox size (well 7GB currently - which I imagine is probably an order of magnitude above the total SLUG archive), this is the easiest and low-impact way of subscribing to mailing lists. -- Regards, Martin On Mon, Sep 1, 2008 at 10:06 AM, Luke Vanderfluit [EMAIL PROTECTED] wrote: Hi. Is there? I want to be able to read the slug mailing list via web. No feeds on Nabble or others (gmane etc) I believe... Is subscription the only way to read this list? Thanks. Kind regards. Luke. -- Luke Vanderfluit Analyst / Web Programmer e3Learning.com.au 08 8221 6422 -- SLUG - Sydney Linux User's Group Mailing List - http://slug.org.au/ Subscription info and FAQs: http://slug.org.au/faq/mailinglists.html -- SLUG - Sydney Linux User's Group Mailing List - http://slug.org.au/ Subscription info and FAQs: http://slug.org.au/faq/mailinglists.html
Re: [SLUG] SATA cards and mobos
I bought a Skymaster 2 port SATA card that uses the Silicon Image 3512 chipset. It supports hardware RAID (which I am not using). That cost $20 and I bought a 500GB Seagate (with 16MB buffer) for $99. I get around 50MB/s sustained read speed (with a 800MHz PIII running on a Intel m-board) so I am very happy. It just worked out of the box with Ubuntu 8.04. On Sun, Jul 13, 2008 at 4:26 PM, bill [EMAIL PROTECTED] wrote: I have 3 PCs which all have Gigabyte mobos with onboard PATA and SATA Raid controllers. These can be set to not be RAID and under older Linux distros, Ubuntu/Kubuntu in particular ( and drivatives thereof - ie LinuxMint etc) I have had no problems with 3 PATA hds and a DVDRW attached to the normal IDE connectors, along with SATA hds attached to the RAID connectors ( set to BASE in th PC Bios). Since Ubuntu 8.04 ( and derivatives) I have not been able to :- 1) boot any Ubuntu/Kubuntu etc LiveCD with both PATA and SATA hds attached. 2) successfully install to either a PATA or SATA hd and boot due to conflicts in the way the system sees drives/partitions. UUID's do not solve this. From the Suse Community forums I see that there are problems with Promise SATA cards/mobos, which is what are on my systems, along with Grub problems etc. So, can anybody recommend a Linux compatible SATA PCI card, or a mobo ( hopefully inexpensive) with onboard SATA that is Linux compatible? As I have several SATA hds with data that I would like to access by means other than using an older LiveCD or installing an older distro, my only other option is an external, multi SATA hd case, which I prefer to avoid. I have posted re my PATA/SATA problems here before, particularly in regard to UUIDs. Thanks Bill -- SLUG - Sydney Linux User's Group Mailing List - http://slug.org.au/ Subscription info and FAQs: http://slug.org.au/faq/mailinglists.html -- Regards, Martin Martin Visser -- SLUG - Sydney Linux User's Group Mailing List - http://slug.org.au/ Subscription info and FAQs: http://slug.org.au/faq/mailinglists.html
Re: [SLUG] Firefox 3.0 Download Day
Please don't misconstrue this as a troll or attempt to start a flame-war, but what licence is Opera released under? After spending 5 minutes vainly looking for some sort of indicative statement, only by searching on their site for license (sic), you get a few hits that all seem to indicate restrictions depending on the market/device you fall under. Is it actually considered free software? On Tue, Jun 17, 2008 at 1:45 PM, Dean Hamstead [EMAIL PROTECTED] wrote: fwiw, opera 9.5 is out :) in lots of fruity linux flavours Dean Regards, Martin Martin Visser -- SLUG - Sydney Linux User's Group Mailing List - http://slug.org.au/ Subscription info and FAQs: http://slug.org.au/faq/mailinglists.html
Re: [SLUG] Is someone is snooping my wireless?
Daniel beat me to the punch on all counts, and have to agree. Locking down MAC addresses and not using DHCP are probably the most easily circumventing - the former can be done by just configuring you NIC with that MAC address, and overriding a fixed IP address is basically as trival as responding to ARP requests quicker than the real guy ;-) I have to admit I am slightly lazy at home and using WEP - my previous excuse was that I had some devices that didn't support WEP (and that WPA support on Linux was poor) but I think I probably can't call on that one now. Martin On Tue, Jun 17, 2008 at 3:10 PM, Daniel Pittman [EMAIL PROTECTED] wrote: DaZZa [EMAIL PROTECTED] writes: On Tue, Jun 17, 2008 at 2:49 PM, Rick Welykochy [EMAIL PROTECTED] wrote: You should make sure you take the simple steps which *everyone* running wireless should do. 1) Disable SSID broadcast 2) Disable DHCP unless you absolutely *have* to use it. Already do the above two. SSID should only be used for public nets, I presume. And no DHCP. Only for nets you *want* to be open for potential unauthorised use. Hiding the SSID doesn't add any significant security because... Even in public nets, I disable it, and require potential users to come ask for the SSID before connecting. ...you can sniff it out of the air, using tools such as kismet. You may get less drive-by connection attempts, but it will not secure the network any further. Oh, and neither will avoiding DHCP: it is a trivial inconvenience, since kismet and friends will sniff your network details over the air also. 3) Make the Wireless subnet as small as you can possibly go for the number of machines you have. The one I use at home is set to 192.168.25.0 with a 255.255.255.252 netmask - leaving room for only the router's IP address, and the one machine I have running wireless. The cable LAN segment has a completely different range. Excellent advice. Thanks. I am completely statically addressed here with a number of machines. I'll partition the address space and separate out the cabled LAN. That shouldn't make much difference to security, because by the time someone has broken it to have access to the IP level you have already lost, more or less. This will make it marginally inconvenient for someone to abuse your service, but only marginally. Just like DHCP it really doesn't add anything but momentary inconvenience. [...] 4) Use WPA or WPA2. WEP is badly broken, and was cracked years ago. Will do. It's long overdue. Laziness == !Secure. Yup. No argument with that one. These will add real security and are very valuable. I like WPA2 Enterprise, backed with a real username and password database, and a real authentication protocol, but a shared key is probably good enough. [...] But I will remain vigilant and implement as much security as possible. Constant vigilance! Heh. :) Regards, Daniel -- SLUG - Sydney Linux User's Group Mailing List - http://slug.org.au/ Subscription info and FAQs: http://slug.org.au/faq/mailinglists.html -- Regards, Martin Martin Visser -- SLUG - Sydney Linux User's Group Mailing List - http://slug.org.au/ Subscription info and FAQs: http://slug.org.au/faq/mailinglists.html
Re: [SLUG] Is someone is snooping my wireless?
Rick, It isn't clear what you are seeing. Is this just an *available* adhoc network appearing in network-manager? This just means that there is someone nearby advertising their PC as an ad-hoc network. It is then up to you to decide if you want to connect to them. Martin On Tue, Jun 17, 2008 at 2:10 PM, Rick Welykochy [EMAIL PROTECTED] wrote: This may be off topic, but there is a lot of networking talent on SLUG. And the answers to this query will be very useful in general. A new icon I have never seen before for a PC connection to my wireless LAN has alerted me that someone the area is attempting to connect. The icon only indicates that it is a PC. No IP or any info like that. What I am after is intrusion detection software for a wireless LAN. * how can I get the IPs of the connected or trying to connect? * can I snort out those trying to break in with WEP cracks? That kind of stuff. I feel like I'm running blind right now, and disconnecting the wireless is the only option until I know what is going on. FWIW I've run this wireless for about five years now and this is the first time I've seen anything like this. I am in inner Sydney and there are heaps of wireless LANs around, and an office block full of PCs 10m across the alley from me. One idea comes to mind: tcpdump, which has been an excellent tool in the past, esp. to point the finger at a stray device that is flooding the LAN. cheers rickw -- Rick Welykochy || Praxis Services || Internet Driving Instructor My advice to the women's clubs of America is to raise more hell and fewer dahlias. -- William Allen White -- SLUG - Sydney Linux User's Group Mailing List - http://slug.org.au/ Subscription info and FAQs: http://slug.org.au/faq/mailinglists.html -- Regards, Martin Martin Visser -- SLUG - Sydney Linux User's Group Mailing List - http://slug.org.au/ Subscription info and FAQs: http://slug.org.au/faq/mailinglists.html
Re: Compromised Linux box stories (Re: [SLUG] upgrading complicated installs)
I have often found that feeding the output of the toaster, back into the toaster demonstrates an overflow bug, requiring opening all of the windows and doors. On Tue, Jun 3, 2008 at 10:53 AM, Sam Gentle [EMAIL PROTECTED] wrote: On Tue, Jun 3, 2008 at 10:47 AM, Rick Welykochy [EMAIL PROTECTED] wrote: Sridhar Dhanapalan wrote: On Mon, 2 Jun 2008 at 14:59, Jason Ball [EMAIL PROTECTED] wrote: Not wishing to start an OS war, but I rarely if ever have seen a BSD or Sun box compromised. Is this due to sheer numbers of Linux and Doze? More than likely. I've seen a range of plausible reasons and hard statistics to back up Linux supporters' assertions that the frequency of compromises on Windows systems is due to far more than just its sheer install base. I'd hate to see Linux users start to solely use the 'market share' argument against other, less used, operating systems. As pointed out previously, one contributing factor to x86 Windows and Linux architectures being popular targets is that there is significant payback in writing attack software for platforms that are ubiquitous. The rarer the system, the less likely there is blackhat experience to crack it. Market share is a factor. But as we all know, a house of cards built of shakey foundations is another factor. BSD and Sun zealots do claim that their software systems are much more robust/stable than Linux and Windows. I cannot respond to that claim. Regarding your sig: Your toaster doesn't crash. Your television doesn't crash. Why should your computer? http://www.linux.org.au/linux The answer should be obvious. A dedicated computer running an appliance runs heavily tested software dedicated to one purpose and a well-known hardware set. A general purpose computer running any variety of software you install along with a conglomerate of possibly never before tried hardware suffers the combinatorial explosion of interactions and complexity that a toaster never experiences. The devil is in the detail of general-purpose vs purpose-built. That said, I know a great knife-related toaster bug. For some reason instead of fixing it the designers just added warnings to the user manual saying don't use this combination of inputs. Sam -- SLUG - Sydney Linux User's Group Mailing List - http://slug.org.au/ Subscription info and FAQs: http://slug.org.au/faq/mailinglists.html -- Regards, Martin Martin Visser -- SLUG - Sydney Linux User's Group Mailing List - http://slug.org.au/ Subscription info and FAQs: http://slug.org.au/faq/mailinglists.html
Re: [SLUG] Linux client for Citrix Access Gateway?
Sridhar, Not sure exactly which version of the CAG your customer has - but it sounds like an older version. The newer Citrix Access Gateway Enterprise Edition (version 8.0 and up) is built on the Netscaler platform (which is BSD based). This does have a Java client which will run under Linux to give transparent access. I have a deployment of this under my belt (though the customer isn't using the Java client - I did verify that it works.) Martin On Sun, Jun 1, 2008 at 12:55 PM, Sridhar Dhanapalan [EMAIL PROTECTED] wrote: We're trying to deploy a Linux server into an all-Windows company. Our client is actually quite happy with this solution, but we were informed a couple of days ago that they have a Citrix Access Gateway VPN server that we must go through in order to interact with their network. I can't seem to find any clear information on how to connect to the VPN with our Linux server. The client Citrix refers to appears to be for remote desktop use through a Web browser, and is hence useless for a server. In a cruel twist of irony, I discovered that the Citrix device is essentially a Supermicro rackmount unit loaded with RHEL, with the proprietary Citrix software running on top. So despite our client being happy with a Linux-based solution, they seem to be locked into Windows by their VPN. -- Need to fork out $$$ for the next software upgrade? Break the cycle! http://www.linux.org.au/linux -- SLUG - Sydney Linux User's Group Mailing List - http://slug.org.au/ Subscription info and FAQs: http://slug.org.au/faq/mailinglists.html -- Regards, Martin Martin Visser -- SLUG - Sydney Linux User's Group Mailing List - http://slug.org.au/ Subscription info and FAQs: http://slug.org.au/faq/mailinglists.html
Re: [SLUG] Hard disk drive
PATA is basically the same as what you might have known as ATA or IDE - with the wide 40 pin ribbon cable and header connector. (Yes you can get round IDE cables but that is mainly aesthetics and airflow - the connector is the same. SATA is the new-fangled type of connector with a skinny flat cable with only a dozen or so pins. (Google will give you pics and specs). If your board is 4 years old, it almost certainly will be IDE (or PATA as you say) On Mon, May 26, 2008 at 11:03 AM, Alan L Tyree [EMAIL PROTECTED] wrote: I need some advice. I'm running Debian Etch on a four year old box. I has (had) two disk drives, one of which dropped dead. Looking for new ones, I see P/ATA and S/ATA. Can I use either one of these, or do they require special motherboard support? How do I tell if my system supports either one? Thanks for help, Alan -- Alan L Tyreehttp://www2.austlii.edu.au/~alan Tel: 04 2748 6206 Fax: +61 2 4782 7092 FWD: 615662 -- SLUG - Sydney Linux User's Group Mailing List - http://slug.org.au/ Subscription info and FAQs: http://slug.org.au/faq/mailinglists.html -- Regards, Martin Martin Visser -- SLUG - Sydney Linux User's Group Mailing List - http://slug.org.au/ Subscription info and FAQs: http://slug.org.au/faq/mailinglists.html
Re: [SLUG] Hard disk drive
Alan, However, most new motherboards have limited support for PATA - often only having one connector for that these days, as it is basically used just for the DVD drive. These boards tend to have at least 4 SATA ports, and often two are RAIDable. At some stage PATA drives will become more expensive and/or not available (especially in the larger sizes). So there *may* be an advantage in getting a SATA controller and a SATA drive if you want to extend the life of the server a little longer than you might otherwise - it would then also have the benefit of allowing you to move the SATA drive at some stage on to a newer server. On my home systems, I install new SATA drives where I am able and divert the PATA drives to the older systems. Of course I don't want to imply that you wont be able to get PATA drives next week, but they will become deprecated over time, as does most computer technology :-) Martin On Mon, May 26, 2008 at 12:09 PM, Alan L Tyree [EMAIL PROTECTED] wrote: On Mon, 26 May 2008 11:54:35 +1000 david [EMAIL PROTECTED] wrote: On Mon, 2008-05-26 at 11:44 +1000, Martin Visser wrote: PATA is basically the same as what you might have known as ATA or IDE - with the wide 40 pin ribbon cable and header connector. (Yes you can get round IDE cables but that is mainly aesthetics and airflow - the connector is the same. SATA is the new-fangled type of connector with a skinny flat cable with only a dozen or so pins. (Google will give you pics and specs). If your board is 4 years old, it almost certainly will be IDE (or PATA as you say) I have a PATA only board to which I added a SATA controller card and now run two PATA and two SATA drives. Works for me :) I'm not sure if there could be a BIOS issue, but I didn't have one. Thanks David. I don't really have a storage problem: [EMAIL PROTECTED]:~$ df -h FilesystemSize Used Avail Use% Mounted on /dev/hda2 37G 3.0G 32G 9% / tmpfs 253M 0 253M 0% /lib/init/rw udev 10M 52K 10M 1% /dev tmpfs 253M 0 253M 0% /dev/shm /dev/hda1 145G 9.5G 130G 7% /home But I like the second disk for automatic backups. More than two would be overkill :-). Thanks On Mon, May 26, 2008 at 11:03 AM, Alan L Tyree [EMAIL PROTECTED] wrote: I need some advice. I'm running Debian Etch on a four year old box. I has (had) two disk drives, one of which dropped dead. Looking for new ones, I see P/ATA and S/ATA. Can I use either one of these, or do they require special motherboard support? How do I tell if my system supports either one? Thanks for help, Alan -- Alan L Tyreehttp://www2.austlii.edu.au/~alan Tel: 04 2748 6206 Fax: +61 2 4782 7092 FWD: 615662 -- SLUG - Sydney Linux User's Group Mailing List - http://slug.org.au/ Subscription info and FAQs: http://slug.org.au/faq/mailinglists.html -- Regards, Martin Martin Visser -- SLUG - Sydney Linux User's Group Mailing List - http://slug.org.au/ Subscription info and FAQs: http://slug.org.au/faq/mailinglists.html -- Alan L Tyreehttp://www2.austlii.edu.au/~alan Tel: 04 2748 6206 Fax: +61 2 4782 7092 FWD: 615662 -- SLUG - Sydney Linux User's Group Mailing List - http://slug.org.au/ Subscription info and FAQs: http://slug.org.au/faq/mailinglists.html -- Regards, Martin Martin Visser -- SLUG - Sydney Linux User's Group Mailing List - http://slug.org.au/ Subscription info and FAQs: http://slug.org.au/faq/mailinglists.html
Re: [SLUG] Problem with an upgrade to Hardy.
With Xorg 7.3 (as on Hardy) you might find that you are better off just removing /etc/X11/xorg.conf and letting bulletproof X do it's thing. It will create a new sensible xorg.conf that *should* work. (You have some crud in the old one that didn't migrate properly) Failing that, run sudo dpkg-reconfigure xserver-xorg and then xrandr (or the screen resolution GUI) to tweak it. On Sat, May 24, 2008 at 11:48 PM, [EMAIL PROTECTED] wrote: Just recently I upgraded from Feisty to Hardy Heron. It was suggested that I do this in two stages: first to Gutsy Gibbon and thence to Hardy. I'd upgraded to Gutsy before, but had been so cheesed off with the problems that I returned to Feisty. It may have been a grade behind Gutsy, but at least it worked. The first jump, to Gutsy, was completed and I noticed a problem that I encountered before with Gutsy. I use a docking station and whilst the background filled the Samsung monitor, the rest of the Desktop was the same size as the laptop's monitor. I assumed that this would probably be one of the problems fixed with the move to Hardy and resolutely pressed onward. The upgrade to Hardy was completed. The monitor problem had changed: now there is no picture whatsoever on the Samsung and it is indicating that nothing is emanating from the docking station. So what's gone wrong? I'd appreciate any advice. Regards, Bill Bennett. -- SLUG - Sydney Linux User's Group Mailing List - http://slug.org.au/ Subscription info and FAQs: http://slug.org.au/faq/mailinglists.html -- Regards, Martin Martin Visser -- SLUG - Sydney Linux User's Group Mailing List - http://slug.org.au/ Subscription info and FAQs: http://slug.org.au/faq/mailinglists.html
Re: [SLUG] Further to the deadly authentication.
Yes, I have always thought that there is something broken in the mirror process. My guess is that the mirror process works alphabettically through the tree, hence .../ubuntu/dists/release/main/arch/Packages.* gets mirrored before .../ubuntu/pool/main/dir/*.deb does. Hence there is a pretty good chance you will be trying to update packages that aren't available yet. Maybe I have that wrong (LazyWeb please illuminate) but I still wonder why it sometime Just Doesn't Work (TM) ;-) Martin On Sun, May 18, 2008 at 8:51 AM, Amos Shapira [EMAIL PROTECTED] wrote: On Sun, May 18, 2008 at 8:26 AM, Erik de Castro Lopo [EMAIL PROTECTED] wrote: LANG= sudo apt-get update Well, I did, although I like to know what I'm doing. The sudo etc I understand, but what's LANG= please? Did this then allow you to install the software without having to install software that was un-authenticated? If so, then the update grabbed the the digital signatures. I sometimes (not many, two or three times in a last year, most of them relatively recently) find unsigned packages in aptitude. I suspect that it happens when I apt-get update while the mirror is being updated. I suppose that as long as you don't mess around with untrusted sources, and make sure that the U is removed when you actually install the package, then you are pretty safe. -- SLUG - Sydney Linux User's Group Mailing List - http://slug.org.au/ Subscription info and FAQs: http://slug.org.au/faq/mailinglists.html
Re: [SLUG] Debian SSH vulnerability: act now!
And what has barely rated a mention is that anything you may have transmitted using SSH or SSL encryption using aforesaid weak keys may also be vulnerable to easy decryption. While a long shot, if someone has managed to capture whole packet traces of such a conversation, it might be a relatively easy (compared to using non-weak keys) brute force exercise to decode the traffic simply by trying all of the 32767 possible weak keys (this applies to SSH - not sure about SSL - though for self-signed certificates it could well be the same level of risk). Of course, capturing traffic between client and server across the internet is not easy unless the bad guys are located in a carrier and an ISP, so the risk here is probably quite small. Regards, Martin On Fri, May 16, 2008 at 9:30 AM, Jeff Waugh [EMAIL PROTECTED] wrote: quote who=Peter Chubb Just in case anyone missed it, there's been a major vulnerability for any SSH keys generated on a debian system over the last two years or so ... apparently the random number generator wasn't being seeded right, so only a few distinct keys were actually generated. The AARNET mirror doesn't have the updated packages as of this morning, but the Optusnet mirror does ... I suggest that -- you install the new openssh-client package (version 1:4.7p1-9 on unstable) -- run ssh-vulnkey -a as root to find any vulnerable keys, and get your users to fix them. ... and anyone running a machine that accepts ssh key authentication, even if it's not running Debian, has to care about this. Check the keys that are being used to authenticate to your hosts, and consider your recovery options carefully given that we can't detect all of the vulnerable keys. - Jeff -- OSCON 2008: Portland OR, USA http://conferences.oreilly.com/oscon/ GNOME, launched specifically to counter a threat to our freedom, is the free software project par excellence. - Richard Stallman -- SLUG - Sydney Linux User's Group Mailing List - http://slug.org.au/ Subscription info and FAQs: http://slug.org.au/faq/mailinglists.html -- Regards, Martin Martin Visser -- SLUG - Sydney Linux User's Group Mailing List - http://slug.org.au/ Subscription info and FAQs: http://slug.org.au/faq/mailinglists.html
Re: [SLUG] NTFS HD, chkdsk and ntfsresize?
Amos' advice below is actually not correct in all circumstances. If you are shrinking a NTFS filesystem, you should *NOT* change the host partition size with fdisk first. By doing this, ntfsresize will no longer have access to the tail of the partition you have chopped off, and you will have a broken NTFS filesystem (The tail would be left in unallocated space) On Wed, Apr 30, 2008 at 2:03 PM, Amos Shapira [EMAIL PROTECTED] wrote: On Wed, Apr 30, 2008 at 11:42 AM, bill [EMAIL PROTECTED] wrote: Note - Using 57676M ( obtained from result of sudo ntfsresize -i /dev/sda1 above) didnt work. Is it safe to use sudo ntfsresize --force -s 43896M /dev/sda1 or do I risk losing my data? You should first resize the partition in the partition table (using fdisk, delete then re-create the partition, change its type to 7 (NTFS)), have you done that? After that is done, ntfsresize will by default automatically resize the file system to occupy the entire partition (see the bottom of the output from running ntfsresize without arguments). --Amos -- SLUG - Sydney Linux User's Group Mailing List - http://slug.org.au/ Subscription info and FAQs: http://slug.org.au/faq/mailinglists.html -- Regards, Martin Martin Visser -- SLUG - Sydney Linux User's Group Mailing List - http://slug.org.au/ Subscription info and FAQs: http://slug.org.au/faq/mailinglists.html
Re: [SLUG] NTFS HD, chkdsk and ntfsresize?
An unchecked NTFS filesystem can be mounted in Ubuntu, but only if you force it to be mounted read-only (so at least you can read the data) On Wed, Apr 30, 2008 at 11:42 AM, bill [EMAIL PROTECTED] wrote: I have a 120gb SATA HD formatted NTFS ( 2 partitions - dont think 2nd is used/formatted as only 1 shows up) in my Kubuntu Hardy PC. Cant mount the HD, requires CHKDSK to be run as error message says drive not shut down properly. -- SLUG - Sydney Linux User's Group Mailing List - http://slug.org.au/ Subscription info and FAQs: http://slug.org.au/faq/mailinglists.html
Re: [SLUG] Re: Sending mail from within a highly locked down network
/proc/cmdline has the kernel parameters on my Ubuntu system On Mon, Apr 21, 2008 at 5:36 PM, Mick Pollard [EMAIL PROTECTED] wrote: On Mon, 21 Apr 2008 17:25:30 +1000 Sonia Hamilton [EMAIL PROTECTED] wrote: On Mon, 2008-04-21 at 16:31 +1000, Mick Pollard wrote: To automate this 'script' you could build a simple smtp profile system. Grub allows you to pass extra info to it and this is made available to the init process in shell variable $CMDLINE. So would one access $CMDLINE in /etc/rc.local (Ubuntu), or elsewhere? I am not sure on Ubuntu ( never used it or upstart ), I can't see why it wouldn't, but on sysv init/bsd init I know it works. On arch linux I edit /etc/rc.multi and its available there. -- Regards Mick Pollard ( lunix ) BOFH Excuse of the day: Unreplicatable Proxy Interruption Signal -- SLUG - Sydney Linux User's Group Mailing List - http://slug.org.au/ Subscription info and FAQs: http://slug.org.au/faq/mailinglists.html -- Regards, Martin Martin Visser -- SLUG - Sydney Linux User's Group Mailing List - http://slug.org.au/ Subscription info and FAQs: http://slug.org.au/faq/mailinglists.html
