Re: [SLUG] How do I mount a RAID1 disk?
Oh hi Mike, Raid 1 you should be able to mount as it's native filesystem for recovery in read-only mode. EG mount -t ext2 -o /dev/sdb3 /mnt/recovery You mentioned LVM. That's going to be your problem for now. You need to make sure you have the lvm2 tools installed. Try 'pvscan' it should list the physical volumes (aka partitions in this case). 'vgchange -ay' should 'activate' all the volume groups. Then if that's done you should now find you've got some logical volumes... 'lvscan' will tell you. Then it's going to be something like... mount -o ro -t ext2 /dev/VolumeGroup/LogicalVolume /mnt/recovery Note that I use the -o ro to mount read-only as you're less likely to fsck up the data. On Wed, 3 Dec 2008, Michael Lake wrote: Hi all I am trying to get data off someones old machine that died and place it onto a new machine for them. The old machine had two Western Digital IDE drives as RAID1. I have inserted one of the drives into a new machine in place of the CDROM drive and connected it's IDE cable up and it shows up as /dev/sdc /dev/sdc sdc1 sdc2 sdc3 sdc5 Both of the drives show the same info above. By trying mount I can see that partition 2 is the swap, 1 is probably a /boot and the data that I wish to retrieve is on either or both of 3 or 5. See Try to mount the Partitions below. I also used mdadm to get some detailed info on sdc5 (see below). My problem is that I can't work out how to mount sdc3 (have tried -t ext3, -t reiserfs, -t auto) or sdc5. The latter is probably the one I want. I gather the partition table says it 'mdraid' and I need to change that? I have two drives, and both give the same info. I just need to mount ONE of them and copy the data off it. I don't want to try and setup the original raid. (PS: the machine I have one of them installed on is using mdraid and LVM) Try to mount the Partitions --- # mount -r /dev/sdc1 /mnt mount: unknown filesystem type 'mdraid' # mount -r /dev/sdc2 /mnt /dev/sdc2 looks like swapspace - not mounted mount: you must specify the filesystem type # mount -r /dev/sdc3 /mnt mount: you must specify the filesystem type # mount -r /dev/sdc5 /mnt mount: unknown filesystem type 'mdraid' Use mdadm to examine these partitions - # /sbin/mdadm --examine /dev/sdc2 mdadm: No md superblock detected on /dev/sdc2 -- as it's swap OK # /sbin/mdadm --examine /dev/sdc3 mdadm: No md superblock detected on /dev/sdc3 # /sbin/mdadm --examine /dev/sdc5 /dev/sdc5: Magic : a92b4efc Version : 00.90.00 UUID : b6035660:c11a8a2e:7026aea2:99d23bfc Creation Time : Wed May 14 15:10:36 2003 Raid Level : raid1 Used Dev Size : 108486848 (103.46 GiB 111.09 GB) Array Size : 108486848 (103.46 GiB 111.09 GB) Raid Devices : 2 Total Devices : 2 Preferred Minor : 1 Update Time : Tue Aug 5 21:07:20 2008 State : clean Active Devices : 2 Working Devices : 2 Failed Devices : 0 Spare Devices : 0 Checksum : b9113923 - correct Events : 0.8311948 Number Major Minor RaidDevice State this 0 3350 active sync 0 0 3350 active sync 1 1 3451 active sync [EMAIL PROTECTED] dev]# -- ---GRiP--- Grant Parnell - LPIC-1 certified engineer EverythingLinux services - the consultant's backup tech support. Web: http://www.elx.com.au/support.php We're also busybits.com.au and linuxhelp.com.au and everythinglinux.com.au. Phone 02 8756 3522 to book service or discuss your needs or email us at paidsupport at elx.com.au ELX or its employees participate in the following:- OSIA (Open Source Industry Australia) - http://www.osia.net.au AUUG (Australian Unix Users Group) - http://www.auug.org.au SLUG (Sydney Linux Users Group) - http://www.slug.org.au LA (Linux Australia) - http://www.linux.org.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] vncviewer version 4.x on debian/ubuntu
On Tue, 23 Oct 2007, David P wrote: On 10/19/07, Grant Parnell [EMAIL PROTECTED] wrote: What's the story with running VNC version 4 on Ubuntu etc? Try installing xvnc4viewer (as opposed to the default xvncviewer). D'oh thanks for that, works a treat and I notice it has options for clipboard transfer... I'll probably have to upgrade the server end to experiment with that (it's 4.0 on Fedora Core 6). -- ---GRiP--- Grant Parnell - LPIC-1 certified engineer EverythingLinux services - the consultant's backup tech support. Web: http://www.elx.com.au/support.php We're also busybits.com.au and linuxhelp.com.au and everythinglinux.com.au. Phone 02 8756 3522 to book service or discuss your needs or email us at paidsupport at elx.com.au ELX or its employees participate in the following:- OSIA (Open Source Industry Australia) - http://www.osia.net.au AUUG (Australian Unix Users Group) - http://www.auug.org.au SLUG (Sydney Linux Users Group) - http://www.slug.org.au LA (Linux Australia) - http://www.linux.org.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] making boot floppy 'no space left'
Effectively the mkbootdisk command builds the image in temp disk space then uses 'dd' (or cp?) to write to the floppy device. If either there's not enough space in /tmp or the floppy isn't formatted ok you're going to have problems. If /tmp is full firstly try deleting stuff then try creating /home/tmp with same permissions then mv /tmp /tmp.old; ln -s /home/tmp /tmp You're probably going to need at least half a meg of temp space before it does the compression. It looks more like the target system didn't have enough space. This usually means the floppy needs reformatting. man fdformat eg: fdformat /dev/fd0H1440 - frequently I find failures because a) the floppy drive is old/dirty/disused and secondly the media has been laying around gathering dust. Before you start, flip the drive door open and blow air into it to dislodge dust. Manually inspect the media for crap inside the jacket - it can damage the drive too. Did I mention I hate floppy drives? On Thu, 21 Dec 2006, Voytek Eymont wrote: I'm tryying to make a boot floppy on 1.44 media, I get: 'no space' is that space on floppy ? where am I going wrong ? # mkbootdisk --device /dev/fd0 2.6.9-42.0.3.EL Insert a disk in /dev/fd0. Any information on the disk will be lost. Press Enter to continue or ^C to abort: cp: writing `/tmp/mkbootdisk.sR3853/vmlinuz': No space left on device cp: writing `/tmp/mkbootdisk.sR3853/initrd.img': No space left on device cat: write error: No space left on device cat: write error: No space left on device 20+0 records in 20+0 records out # df | grep /tmp 1064312 37060973188 4% /tmp # ls -al /tmp total 2968 drwxrwxrwt 7 root root4096 Dec 21 12:48 . drwxr-xr-x 24 root root4096 Dec 21 12:13 .. drwxrwxrwt 2 root root4096 Dec 21 12:14 .font-unix drwxrwxrwt 2 root root4096 Dec 21 12:13 .ICE-unix drwx-- 2 root root 16384 Dec 19 23:36 lost+found drwx-- 2 root root4096 Dec 21 12:40 mc-root -rw--- 1 root root 1474560 Dec 21 12:48 mkbootdisk.di3864 drwx-- 2 root root4096 Dec 21 12:38 mkbootdisk.JY3692 -rw--- 1 root root 1474560 Dec 21 12:42 mkbootdisk.tO3735 -rw--- 1 root root1024 Dec 19 23:52 .rnd -- ---GRiP--- Grant Parnell - SLUG President LPIC-1 certified engineer EverythingLinux services - the consultant's backup tech support. Web: http://www.elx.com.au/support.php We're also busybits.com.au and linuxhelp.com.au and everythinglinux.com.au. Phone 02 8756 3522 to book service or discuss your needs or email us at paidsupport at elx.com.au ELX or its employees participate in the following:- OSIA (Open Source Industry Australia) - http://www.osia.net.au AUUG (Australian Unix Users Group) - http://www.auug.org.au SLUG (Sydney Linux Users Group) - http://www.slug.org.au LA (Linux Australia) - http://www.linux.org.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] Obtaining Ubuntu DVD
On Mon, 4 Dec 2006, Dimitri Koussa wrote: On 22:09 Mon 04 Dec 06, Jeff Waugh spake thusly: quote who=Dimitri Koussa Does anyone know where I can obtain an Ubuntu install DVD? Your best bet is to download and burn one (or find someone to download and burn one for you). I was hoping it wouldn't come to that. I have to pay ~5.5 cents/Mb here at USyd so that's $175 for the DVD...I guess I'll start emailing my friends asking if they've got some bandwidth they can spare. Unless...does anyone have the DVD? I will pay for or replace the DVD and can go pick it up (if close to city). As far as I knew there was only the CD version? We're selling it for $16.00 and you can pick it up, because of our sale we're opening Thursday nights till 7pm and Sat 10-12. Unit B6, 27-29 Fariola St, Silverwater. Jump on a 525 bus from Strathfield or Parramatta. I've got Ubuntu desktop/server for x86, x86-64, PPC and just today I've collected Xubuntu mainly because I wanted it for CompuberBank - more on that later. -- ---GRiP--- Grant Parnell - SLUG President LPIC-1 certified engineer EverythingLinux services - the consultant's backup tech support. Web: http://www.elx.com.au/support.php We're also busybits.com.au and linuxhelp.com.au and everythinglinux.com.au. Phone 02 8756 3522 to book service or discuss your needs or email us at paidsupport at elx.com.au ELX or its employees participate in the following:- OSIA (Open Source Industry Australia) - http://www.osia.net.au AUUG (Australian Unix Users Group) - http://www.auug.org.au SLUG (Sydney Linux Users Group) - http://www.slug.org.au LA (Linux Australia) - http://www.linux.org.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] SQL join to most recent log table entry?
On Wed, 8 Nov 2006, Grant Parnell ELX wrote: select itmmaster.id, suppstock.stockavail, suppstock.lastupdated from itmmaster left join suppstock on itmmaster.id = suppstock.id where -- match only latest suppstock entry suppstock.lastupdated = (select s2.lastupdated from suppstock s2 where s2.id = suppstock.id order by lastupdated desc limit 1) -- match only entries with stock and suppstock.stockavail0; You could probably also try max(s2.lastupdated) in the subquery instead of an ordered select with limit. I was just getting excited about your above suggestion but realised the sub-query's just going to select literally the most recent log entry where I really want the most recent log entries for all products. It'd work if I could add to the subquery where [EMAIL PROTECTED] where @variable gets set by the main select. This depends on the internal order of processing and I'll check that out. Urm... scratch that last comment, you had it covered... took about 12 minutes with the order by / limit combination and about 6 minutes with the max() method below thanks heaps! select itmmaster.id,suppstock.stockavail,suppstock.lastupdated from itmmaster left join suppstock on itmmaster.id=suppstock.id where itmmaster.indent=1 and itmmaster.publish=0 and suppstock.lastupdated = (select max(s2.lastupdated) from suppstock s2 where s2.id = suppstock.id) having suppstock.stockavail0; 2189 rows in set (6 min 18.54 sec) Well that's nearly 2200 products I shouldn't have deleted from our website (and shall rectify), not bad considering I removed just under 15,000 (which took 12 hours to do! I'll have to turn off indexing till the end of the update next time.) -- ---GRiP--- Grant Parnell - SLUG President LPIC-1 certified engineer EverythingLinux services - the consultant's backup tech support. Web: http://www.elx.com.au/support.php We're also busybits.com.au and linuxhelp.com.au and everythinglinux.com.au. Phone 02 8756 3522 to book service or discuss your needs or email us at paidsupport at elx.com.au ELX or its employees participate in the following:- OSIA (Open Source Industry Australia) - http://www.osia.net.au AUUG (Australian Unix Users Group) - http://www.auug.org.au SLUG (Sydney Linux Users Group) - http://www.slug.org.au LA (Linux Australia) - http://www.linux.org.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] Re: Fine tuning browser-plugin response time
Further update... I turned on debugging to mozplugger and added a timestamp to the debug routine and here's what happened... PID3097: 1141880606 Same. PID3097: 1141880606 Checking command: mplayer -really-quiet -nojoystick -nofs -zoom -vo xv,x11 -ao esd,alsa,oss,arts,null -osdlevel 0 -xy $width -wid $window $file /dev/null PID3097: 1141880606 Match found! PID3097: 1141880606 Command found. PID3097: 1141880608 StreamAsFile PID3097: 1141880608 NEW_CHILD(/ramdisk/media/1132199391.mov) PID3097: 1141880608 Forking, So this mysterious 2 second delay between clicking on the link to the movie and having it play the movie is indeed within the plugin system I was using. On Mon, 6 Mar 2006, Grant Parnell - EverythingLinux wrote: I have a need to improve the time taken to launch a video presentation from a web browser in the short term. The 100MB video file is local (ie on the hard drive of the machine running the browser. In fact I've tried putting a smaller 20MB video, the mplayer app, it's libraries, the plugin manager and it's libraries and the html all in a ramdisk. The sort of response I'm getting is after clicking the link to the video it's taking about 1 to 2 seconds to kick in. I am not sure if it's the browser itself or the plugin manager causing the delay, but if I replace mplaer with a shell script that logs the command line parameters the delay is between clicking the URL and the log entry appearing. Running mplayer directly gives excellent response, ie before the enter key lifts up. I've tried a few browsers and tried to try a few plugin managers with varying success (ie got it to run or didn't). It looks like the common theme is it seems to want to buffer the video when it probably shouldn't. Of course the long term plan would probably be to have somebody code up something that'll call mplayer or flashplayer or render a web page on cue. I've heard gstreamer might be able to do something like this but so far I thought it was used to process video, not display it. Also not sure if annodex could be used here - the presentations could be re-encoded. -- ---GRiP--- Grant Parnell - SLUG President LPIC-1 certified engineer EverythingLinux services - the consultant's backup tech support. Web: http://www.elx.com.au/support.php We're also busybits.com.au and linuxhelp.com.au and everythinglinux.com.au. Phone 02 8756 3522 to book service or discuss your needs or email us at paidsupport at elx.com.au ELX or its employees participate in the following:- OSIA (Open Source Industry Australia) - http://www.osia.net.au AUUG (Australian Unix Users Group) - http://www.auug.org.au SLUG (Sydney Linux Users Group) - http://www.slug.org.au LA (Linux Australia) - http://www.linux.org.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] Nominations page (Re: Nominations hotting up)
On Thu, 9 Mar 2006, Mary Gardiner wrote: On 2006-02-27, Grant Parnell [EMAIL PROTECTED] wrote: Once again, I've updated the election page this morning... http://www.slug.org.au/~grant/election.html A couple of suggestions for this page: 1. Can you put a strike through (HTML strike/strike) the entries for people who have declined a nomination? 2. Can you make the entries for people who haven't yet accepted a little bit lighter (span style=color: #bb;/span or similar) or perhaps bold the not yet accepted bit. It's really hard at the moment to distinguish people who are running from people who aren't and this would help. Ok will do. Also, why is there still a listing for Honourary committee member? As I recall, this is completely unofficial (ie the constitution does not provide for such a position) and was only ever there because for a while it was thought under 18s couldn't be on committee officially. Since we later decided that they could be ordinary members (but not executive members because they can't act as signatories), there seems no reason to keep mentioning it in elections. If the committee needs to be larger, then we should change the constitution, if not there's no reason for the position. I felt that although the under 18's thing had been resolved there might be other reasons but I guess we can always add it again later. There's been no nominations anyway. Give it another 15-20 mins and I'll have it updated. -- ---GRiP--- Grant Parnell - SLUG President LPIC-1 certified engineer EverythingLinux services - the consultant's backup tech support. Web: http://www.elx.com.au/support.php We're also busybits.com.au and linuxhelp.com.au and everythinglinux.com.au. Phone 02 8756 3522 to book service or discuss your needs or email us at paidsupport at elx.com.au ELX or its employees participate in the following:- OSIA (Open Source Industry Australia) - http://www.osia.net.au AUUG (Australian Unix Users Group) - http://www.auug.org.au SLUG (Sydney Linux Users Group) - http://www.slug.org.au LA (Linux Australia) - http://www.linux.org.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] NetBSD live CD
Hey I know this isn't Linux but a lot of you out there also like BSD variants and therefore I'm forwarding this message. Perhaps we could collate all the feedback and send it - otherwise feel free to use the usual bug reporting techniques. -- Forwarded message -- Date: Wed, 25 Jan 2006 23:14:41 -0500 (EST) From: haidut at metawire dot org To: [EMAIL PROTECTED] Subject: NetBSD live CD Hello, I am one of the developers of Arudius - a live CD Linux distro targeting information security professionals. The CD has a large collection of security tools and a very small footprint (210MB) so it fits on a mini-CD, thus it can load its tools completely into RAM and run them very fast. In addition to this security-related Linux distribution, we also developed a NetBSD live CD focusing on the non-security community. It is called NeWBIE (or simply Newbie). This acronym is pronounced just like the word newbie and stands for (Ne)tBSD (W)are (B)urned (I)n (E)conomy, a naming convention similar to the one used for the well-known FreeSBIE CD. Newbie caters to the desktop-user (i.e. with applications for web browsing, chat, multimedia, document editing, etc) but will also serve as a core for creating a NetBSD-based live CD for network security auditing just like Arudius (see the website). We are also in the process of developing a DragonflyBSD version of NeWBIE. The goal of both CDs is to promote the usage of Linux/BSD and hopefully serve as useful tools for people who need that kind of software. We would appreciate it if you try out the CDs and give us some feedback on how we can improve them (i.e configuration, install additional software, etc). If you find any of the CDs to be useful, please mention them on your site or post a link to the homepage - http://arudius.sourceforge.net Thank you very much for your attention and if you have any questions feel free to send an email to [EMAIL PROTECTED] best regards, Haidut -- 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: Red Hat Austrlia Presents: Open Source Forum
Not much to go on but... On Sun, 6 Nov 2005 David Hand at Redhat wrote: Grant, Micheal Tiemann is presenting in Sydney on 16th November. Please will you pass on this information to members of the group. http://www.redhat.com.au/events/aus/osupdate Which is now linked in the SLUG calendar. It's a pity I probably can't make it in time. -- ---GRiP--- Grant Parnell - SLUG President EverythingLinux services - the consultant's backup tech support. Web: http://www.elx.com.au/support.php We're also busybits.com.au and linuxhelp.com.au and everythinglinux.com.au. Phone 02 8756 3522 to book service or discuss your needs or email us at paidsupport at elx.com.au ELX or its employees participate in the following:- OSIA (Open Source Industry Australia) - http://www.osia.net.au AUUG (Australian Unix Users Group) - http://www.auug.org.au SLUG (Sydney Linux Users Group) - http://www.slug.org.au LA (Linux Australia) - http://www.linux.org.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] Re: how to edit the welcome screen of gui in redhat linux 8.0
On Thu, 21 Jul 2005, manickam sudhakar wrote: Hi Help me how to edit the welcome screen of RedHat Linux 8. tell me the file name and its path where it is located. I assume you mean the login screen after it's been installed and all working. This will depend on whether you've chosen the default GNOME desktop or the KDE desktop or something else. If you've chosen the GNOME desktop you can login and go to the settings, login screen menu and select the theme you want. There's a number of other settings like remote access, default logins etc. If that's not flexible enough, edit the /etc/X11/gdm/gdm.conf (look at the [greeter] section maybe). -- ---GRiP--- Grant Parnell - SLUG President EverythingLinux services - the consultant's backup tech support. Web: http://www.elx.com.au/support.php We're also busybits.com.au and linuxhelp.com.au and everythinglinux.com.au. Phone 02 8756 3522 to book service or discuss your needs or email us at paidsupport at elx.com.au ELX or its employees participate in the following:- OSIA (Open Source Industry Australia) - http://www.osia.net.au AUUG (Australian Unix Users Group) - http://www.auug.org.au SLUG (Sydney Linux Users Group) - http://www.slug.org.au LA (Linux Australia) - http://www.linux.org.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] Debian packages and patches [Was: Call for volunteers]
Think this has gotten beyond the scope of the activities mailing list so followup on slug@slug.org.au thanks. On Mon, 20 Jun 2005, Jamie Wilkinson wrote: This one time, at band camp, Jeff Waugh wrote: quote who=Nick Urbanik I know very little about the practicalities of deb packaging, except I've heard a rumor that debs require all the patches to be rolled into one single patch (true or urban myth? How do you cope?). There's a single diff.gz at the end, but most sane packagers ship separate patches as part of that diff.gz. Example: No, sane packagers use revision control. Insane packagers includes the set of people who use patches in the diff as well as those who only use a single diff. In an ideal world where the author of the software also maintains the .deb and .rpm packages yes I agree totally. But what do you do if you're patches aren't (for any of many reasons) integrated into the upstream package or even into a branch of that package in the main repository? It's a bit of overkill to create your own repository and a local branch just to change a default path from /home/httpd to /var/www for example. I may be prepared to eat my words when the source packages come with a code repository. IE in RPM language... rpm -Uvh blah.src.rpm cd /usr/src/redhat/SOURCES/blah.arch vi configure-in tla commit cd ../../SPECS rpmbuild -ba blah.spec -- ---GRiP--- Grant Parnell - SLUG President EverythingLinux services - the consultant's backup tech support. Web: http://www.elx.com.au/support.php We're also busybits.com.au and linuxhelp.com.au and everythinglinux.com.au. Phone 02 8756 3522 to book service or discuss your needs or email us at paidsupport at elx.com.au ELX or its employees participate in the following:- OSIA (Open Source Industry Australia) - http://www.osia.net.au AUUG (Australian Unix Users Group) - http://www.auug.org.au SLUG (Sydney Linux Users Group) - http://www.slug.org.au LA (Linux Australia) - http://www.linux.org.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] Execution via email ?
On Tue, 21 Jun 2005, Rob Sharp wrote: Found this whilst reading about 'iPod slurping' and remembered this thread. http://www.sharp-ideas.net/archives/49.html The premise of RPC-Mail is simple. Construct an e-mail message that has a command that you want one of your remote PCs to execute. Send the e-mail to a special account that is only used by RPC-Mail. Have the remote PC set up with a scheduled task or cron job to periodically execute the application RPC-Mail.py. When RPC-Mail.py executes, it parses all of the subject lines and message bodies of e-mail messages that it finds. If the message body contains a special passphrase, RPC-Mail executes the subject line as a command, and returns standard output as an e-mail message. Might be of use to you. You mean like uux from the UUCP suite? Vaguely remember something like this:- $ uux 'remote.host.name.com.au!netstat -ln' In the beginning there was cp, then there was uucp (Unix-to-Unix copy) via serial port analogue modems, then there was TCP/IP mid 1970's, then there was UUCP over TCP/IP, then there was SMTP in the mid 1980's. UUCP was fully redundant, could handle push or pull from either end, was transactional and you always knew whether the mail/files got there or not and exactly what went on with remote execution. I would say RPC via UUCP would be an excellent choice for intermittent links. We used it for EDI gateways at Corporate Express (ie transfer of all orders and invoices to/from the mainframe). I think they've now stepped up to building a proper RPC type interface as it became necessary for more real-time interaction - but that required significant effort. If you want your system hacked however, consider this in /etc/aliases yourname: | grep ^Subject: | cut -c8- | bash Note that most default sendmail installations will at least whinge about this (at least the ones released this century). -- ---GRiP--- Grant Parnell - SLUG President EverythingLinux services - the consultant's backup tech support. Web: http://www.elx.com.au/support.php We're also busybits.com.au and linuxhelp.com.au and everythinglinux.com.au. Phone 02 8756 3522 to book service or discuss your needs or email us at paidsupport at elx.com.au ELX or its employees participate in the following:- OSIA (Open Source Industry Australia) - http://www.osia.net.au AUUG (Australian Unix Users Group) - http://www.auug.org.au SLUG (Sydney Linux Users Group) - http://www.slug.org.au LA (Linux Australia) - http://www.linux.org.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] SQL Brain teaser...
My god... there's some good ideas there. For now I opted for processing outside of SQL by basically breaking the day into 1 minute time slots and looking at how many orders were currently being processed in each time slot. Next I iterated again and counted up the minutes for each order such that for each real minute the attributed time was t/n where n was the number of current orders being processed. Then I simply averaged the attributed times for each order. I can get away with this approach because the data set is pretty small and it's only twice through the data. Essentially we agree on only looking at times of the day where packing activity is occurring. The jury is out on whether you can assume the orders were processed sequentially based on docketdate. We'll never know, based on this data, how long each specific order took but then I don't care - baring exceptional cases (eg 2 hours). Still, I'll try implimenting your approach for comparison's sake. It'll certainly be interesting. On Thu, 2 Jun 2005, James Gregory wrote: On Wed, 2005-06-01 at 19:59 +1000, Grant Parnell - EverythingLinux wrote: I'm trying to do some metrics on how long it takes to process an order in our system based on time between printing the picking slip and bagging the goods for dispatch. The aim is to determin the maximum performance if we were to have one guy do nothing but pick pack orders. +---+-+-+--+ | ordno | pickslip_printed| docketdate | packmins | +---+-+-+--+ | ordno | 2005-06-01 14:32:16 | 2005-06-01 14:34:47 |3 | So the issue is cases like this one where three orders are processed in parallel: | ordno | 2005-06-01 15:12:27 | 2005-06-01 15:27:26 | 15 | | ordno | 2005-06-01 15:12:28 | 2005-06-01 15:30:25 | 18 | | ordno | 2005-06-01 15:12:29 | 2005-06-01 15:21:53 |9 | So, if we want to consider the time each order actually takes to process, and we're allowing parallel packing we need to make some assumptions about what's going on with that parallel processing. Let's make this assumption: in overlapped time periods, it is acceptable to use the docketdate to demarcate time spent on different orders. So the analysis you're looking for then is not how much time can directly be attributed to each order, but rather how much time is spent on each order, without necessarily knowing which order took that time (you don't have enough data there to do direct attributions even if you wanted to). If we can assume that then you can make some headway on the problem -- you can flatten your data-structure to a time-line of events and measure the time between events. Further, you can also ask the database to ignore time when no order processing is occurring. (excuse my SQL here, it's been a few months) select eventdate, eventname, eventdiff from (select pickslip_printed, 'printed', 1 from orders) union all (select docketdate, 'docketed', -1 from orders) order by eventdate asc; Which discards the relationship of times to specific orders, and allows analysis of just the time elapsed between events. In addition, the eventdiff column will allow you to work out how many orders are outstanding at any point in the timeline. I'd make that into a view, and then build another view that evaluates the sum of the eventdiff column up to that row for every row. Whereever that sum is 0, there are orders being worked on. Once you get to that point, the elapsed time on an order will be the difference between some of the adjacent rows, which is similarly easily calculated. I say some of, because of course the one second that elapsed between those orders being printed does not represent packing time. If you think about it, you can solve that problem but that gets a bit fiddly (you'd need to differentiate between print-print, print-docket and docket-docket scenarios. The latter two would represent order processing time, which is doable, but you need to keep inter-row state, which is slightly tricky in SQL), so you're probably better off employing some kind of heuristic given what you know about the data (eg that you don't believe an order could be packed in 30 seconds or similar). Not bullet-proof, but it's a start. HTH, James. (recovering SQL abuser) -- ---GRiP--- Grant Parnell - SLUG President EverythingLinux services - the consultant's backup tech support. Web: http://www.elx.com.au/support.php We're also busybits.com.au and linuxhelp.com.au and everythinglinux.com.au. Phone 02 8756 3522 to book service or discuss your needs or email us at paidsupport at elx.com.au ELX or its employees participate in the following:- OSIA (Open Source Industry Australia) - http://www.osia.net.au AUUG (Australian Unix Users Group) - http
[SLUG] Computerbank activity ramps up
Just from a personal perspective I thought last weekend at Computerbank at Casula went rather well. At this stage we've gotten through dismantling over 60 of the 200 computers with dangerous motherboards (some catch fire) into parts consisting of power supplies for re-sale, metal cases for recycling, motherboards for recycling, plastic for possible recycling, loads of re-usable RAM, CPU's, HDD, IO cards and screws. Not bad for 4 people on Saturday and 7 on Sunday. Over the next 2 months or so we've got commitment to be open every weekend on both days (not 100% about the long weekend), it's right near Casula station and it's also a great spot for a picnic with a view of the river and room for BBQ's etc. I would suggest people bring a packed lunch otherwise the only shop about is the Cheesecake shop where they have a few meat pies sandwiches. -- ---GRiP--- Grant Parnell - senior consultant EverythingLinux services - the consultant's backup tech support. Web: http://www.everythinglinux.com.au/support.php We're also busybits.com.au and linuxhelp.com.au and elx.com.au. Phone 02 8756 3522 to book service or discuss your needs. ELX or its employees participate in the following:- OSIA (Open Source Industry Australia) - http://www.osia.net.au AUUG (Australian Unix Users Group) - http://www.auug.org.au SLUG (Sydney Linux Users Group) - http://www.slug.org.au LA (Linux Australia) - http://www.linux.org.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] Perl Training Australia offer for SLUG members
-- Forwarded message -- Date: Thu, 02 Jun 2005 10:09:41 +1000 From: Jacinta Richardson [EMAIL PROTECTED] To: Grant Parnell - slug [EMAIL PROTECTED] Subject: Perl Training Australia offer for SLUG members Upcoming Perl courses in Sydney == Perl Training Australia is running the following courses over the coming months and would like to extend a discount to all SLUG financial members. If you're not already a SLUG financial member, join SLUG and use our discount to more than recover your membership costs! http://www.slug.org.au/membership.html Mention your SLUG membership number when you book to get the discounted rates (a saving of $50 - $100). Book and pay by the early bird date to get your free book. Course TitleRunning DateCost Std Cost --- Object Oriented Perl21st - 22nd July$1050 $1100 Introduction to Perl20th - 21st September $1050 $1100 Intermediate Perl 22nd - 23rd September $1050 $1100 Web Development with Perl 15th - 16th December$1050 $1100 Melbourne only --- Perl Best Practices^14th - 15th November$2100 $2200 Understanding Regular Expressions^22nd November $1050 $1100 ^ - These courses are being taught by Dr Damian Conway, author of Object Oriented Perl, and Perl 6 language designer. More Specials = Perl Best Practices and Understanding Regular Expressions - Book on both of these courses before July 31st to receive: - a 10% discount of total cost (a saving of $300) - an autographed copy of Dr Damian Conway's new book Perl Best Practices Don't forget to mention SLUG when you book to recieve your discount! All the best, Jacinta Richardson -- (`-''-/).___..--''`-._ | Jacinta Richardson | `6_ 6 ) `-. ( ).`-.__.`) | Perl Training Australia| (_Y_.)' ._ ) `._ `. ``-..-' | +61 3 9354 6001| _..`--'_..-_/ /--'_.' ,' | [EMAIL PROTECTED] | (il),-'' (li),' ((!.-' | www.perltraining.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] debian ipsec (freeswan?) sonicwall
Firstly I haven't had a lot to do with IPSEC or debian systems. My immediate problem is trying to get *some* ipsec system on the AMD-64 box. I had previously loaded isakmpd package (port from BSD) and all I managed to do was fill up the logs (2GB in 3 days). # cat /proc/cpuinfo | egrep model name|MHz model name : AMD Opteron(tm) Processor 242 cpu MHz : 1593.845 model name : AMD Opteron(tm) Processor 242 cpu MHz : 1593.845 # cat /etc/debian_version 3.1 # cat /etc/apt/sources.list deb http://debian-amd64.alioth.debian.org/debian-pure64 sid main apt-get install openswan Reading Package Lists... Done Building Dependency Tree... Done Some packages could not be installed. This may mean that you have requested an impossible situation or if you are using the unstable distribution that some required packages have not yet been created or been moved out of Incoming. Since you only requested a single operation it is extremely likely that the package is simply not installable and a bug report against that package should be filed. The following information may help to resolve the situation: The following packages have unmet dependencies: openswan: Depends: ipsec-tools but it is not going to be installed E: Broken packages apt-get install freeswan Reading Package Lists... Done Building Dependency Tree... Done Some packages could not be installed. This may mean that you have requested an impossible situation or if you are using the unstable distribution that some required packages have not yet been created or been moved out of Incoming. Since you only requested a single operation it is extremely likely that the package is simply not installable and a bug report against that package should be filed. The following information may help to resolve the situation: The following packages have unmet dependencies: freeswan: Depends: libcurl3 (= 7.12.3-1) but it is not going to be installed Depends: libopensc1 ( 0.9.4) but it is not going to be installed E: Broken packages I have an extensive guide on using FreeSWAN or BSD with isakmpd to interface to the SonicWall, I'll have another bash at isakmpd on Linux in the meantime. Hmm... somewhat more successful... not authenticating. -- ---GRiP--- Grant Parnell - SLUG President EverythingLinux services - the consultant's backup tech support. Web: http://www.elx.com.au/support.php We're also busybits.com.au and linuxhelp.com.au and everythinglinux.com.au. Phone 02 8756 3522 to book service or discuss your needs or email us at paidsupport at elx.com.au ELX or its employees participate in the following:- OSIA (Open Source Industry Australia) - http://www.osia.net.au AUUG (Australian Unix Users Group) - http://www.auug.org.au SLUG (Sydney Linux Users Group) - http://www.slug.org.au LA (Linux Australia) - http://www.linux.org.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] Boo?
It's been pretty quiet on the list unless something's wrong with my email. Is everyone at LCA or something :-) -- ---GRiP--- Grant Parnell - SLUG President EverythingLinux services - the consultant's backup tech support. Web: http://www.elx.com.au/support.php We're also busybits.com.au and linuxhelp.com.au and everythinglinux.com.au. Phone 02 8756 3522 to book service or discuss your needs or email us at paidsupport at elx.com.au ELX or its employees participate in the following:- OSIA (Open Source Industry Australia) - http://www.osia.net.au AUUG (Australian Unix Users Group) - http://www.auug.org.au SLUG (Sydney Linux Users Group) - http://www.slug.org.au LA (Linux Australia) - http://www.linux.org.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] excrypting fs
On Thu, 7 Apr 2005, Kevin Saenz wrote: Hi all, I would like to encrypt /home and my shared directories on my boxes. Would I have to reformat them with an encrypt option? What is the over head with encrypted FS? Is it advisable to share encrypted fs using samba or would there be too much of an over head? Do I have to do a lot of house keeping on the file systems? What do you want to get out of this? I suspect that once the filesystem's mounted (encrypted or not) then it's available as per normal to all users of the system, furthermore, if you're only using it to export via samba then I can't see much point. If the system knows how to mount it on startup then it's like leaving the key in the front door. If on the other hand each user's home directory was a separate encrypted filesystem somehow mounted by using the password supplied to samba or some other method (maybe a web interface that asks for a passphrase to mount/unmount?) that might be worth looking into, the point is the password's not stored on the system. As for the overhead.. dunno haven't experimented although I believe CPU's that support MMX stuff crunch crypto better (ie gets farmed off to the MMX sub-processor). Rest assured though, there will be some overhead. -- ---GRiP--- Grant Parnell - SLUG President EverythingLinux services - the consultant's backup tech support. Web: http://www.elx.com.au/support.php We're also busybits.com.au and linuxhelp.com.au and everythinglinux.com.au. Phone 02 8756 3522 to book service or discuss your needs or email us at paidsupport at elx.com.au ELX or its employees participate in the following:- OSIA (Open Source Industry Australia) - http://www.osia.net.au AUUG (Australian Unix Users Group) - http://www.auug.org.au SLUG (Sydney Linux Users Group) - http://www.slug.org.au LA (Linux Australia) - http://www.linux.org.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] Groupware
On Thu, 7 Apr 2005, Howard Lowndes wrote: I'm looking for a web based multi-user calendar function that is web based, PHP and preferably Postgresql (but will accept MySQL). What are your recommendations? Seems to have dissapeared off the net but I can get you a copy of CST-Calendar (it's GPL) and tiny, easy to configure/adjust to your needs. [EMAIL PROTECTED] backup]$ ls -l total 40 -rw-rw-r--1 grantgrant 71 Oct 11 2000 check.php3 -rw-r--r--1 grantgrant 156 Oct 11 2000 config.php3 -rw-r--r--1 grantgrant4177 Oct 11 2000 display.php3 -rw-r--r--1 grantgrant 147 Dec 15 2000 header.php3 -rw-r--r--1 grantgrant1347 Oct 11 2000 modify.php3 -rw-r--r--1 grantgrant5920 Oct 11 2000 operate.php3 -rw-r--r--1 grantgrant5380 Oct 11 2000 welcome.php3 Here's an example of someone using it - looks like it's stuck inside a frame. http://www.gothicplanet.net/cal-welcome.php We modified it here at ELX for finish date/time and to email us reminders of stuff coming up and to have groups. Oh yeah, we happen to use MySQL but that's trivial to change (config.php3) - the whole thing only uses one very simple table. -- ---GRiP--- Grant Parnell - SLUG President EverythingLinux services - the consultant's backup tech support. Web: http://www.elx.com.au/support.php We're also busybits.com.au and linuxhelp.com.au and everythinglinux.com.au. Phone 02 8756 3522 to book service or discuss your needs or email us at paidsupport at elx.com.au ELX or its employees participate in the following:- OSIA (Open Source Industry Australia) - http://www.osia.net.au AUUG (Australian Unix Users Group) - http://www.auug.org.au SLUG (Sydney Linux Users Group) - http://www.slug.org.au LA (Linux Australia) - http://www.linux.org.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] How to use wget when username contains a @
On Thu, 7 Apr 2005, Michael Kraus wrote: G'day... I'm wanting to retrieve some files of a web server using wget. Unfortunately though the username contains a @ symbol, and the man for wget indicates that the way to do what I want would be to: wget -r ftp://username:[EMAIL PROTECTED]/dir/file However, the username contains a @ Well it's going to be some form of escaping... maybe \@ or %40 -- ---GRiP--- Grant Parnell - SLUG President EverythingLinux services - the consultant's backup tech support. Web: http://www.elx.com.au/support.php We're also busybits.com.au and linuxhelp.com.au and everythinglinux.com.au. Phone 02 8756 3522 to book service or discuss your needs or email us at paidsupport at elx.com.au ELX or its employees participate in the following:- OSIA (Open Source Industry Australia) - http://www.osia.net.au AUUG (Australian Unix Users Group) - http://www.auug.org.au SLUG (Sydney Linux Users Group) - http://www.slug.org.au LA (Linux Australia) - http://www.linux.org.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] Apache 1.3.33 displaying gifs weirdly!
On Fri, 8 Apr 2005, Michael Kraus wrote: G'day all... I've got a FC3 with a custom built apache 1.3.33 (i.e. with mod_perl 1.29 and mod_ssl 2.8.22) - built as per (ORA's) the mod_perl book. Everything is straight and fresh out-of-the-box so to speak, however when I go to http://myserver/ http://myserver/manual the images are OK on the first viewing of the first page with a browser, but as soon as I go to another page on the server (e.g. http://myserver/manual) the images break, or are displayed funny. (They just don't look the same.) Has anyone else observed this behaviour and/or know what is to be done? Firstly no.. never seen anything like that. Also perhaps you should elaborate on don't look the same. Since rendering of images is almost exclusively under client control I can't see how the webserver has much effect. Things to look out for are caching of the images (ie if you set your browser not to load images, but it finds them in the cache it'll still display them and they're probably different). Also the webserver naturally can specify some attributes like size/resolution and borders and layout, but not stuff like number of colours. The other thing of note might be the location the webserver fetches them from, you might somehow have stuffed up and have a few versions in different places. -- ---GRiP--- Grant Parnell - SLUG President EverythingLinux services - the consultant's backup tech support. Web: http://www.elx.com.au/support.php We're also busybits.com.au and linuxhelp.com.au and everythinglinux.com.au. Phone 02 8756 3522 to book service or discuss your needs or email us at paidsupport at elx.com.au ELX or its employees participate in the following:- OSIA (Open Source Industry Australia) - http://www.osia.net.au AUUG (Australian Unix Users Group) - http://www.auug.org.au SLUG (Sydney Linux Users Group) - http://www.slug.org.au LA (Linux Australia) - http://www.linux.org.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: FW: [SLUG] Possible hacker Attempt
On Thu, 7 Apr 2005, Phill wrote: I am also curious. How does this attack work? I understand the idea of filling up a buffer with junk but then Basically a snapshot of a bit of memory might look like this after processing the URL http://localhost/cgi-bin/?HELLO-WORLD byte: content: : H E L L O - W O R L D nul nul nul nul nul 0016: program code If the bit after the '?' character in the GET URL is inserted at byte 00 by apache for which it has only allocated 16 bytes then by adding more bytes you overwrite some code which at some point probably gets run. Key difference, under Linux it's only going to run as the user the original program was running as (eg www or apache). eg http://localhost/cgi-bin/?code_bytesnoopnoopnoopnoop noopjump_to_code It sometimes doesen't matter precisely where the buffer finishes, there's a reasonable chance that one of the noop bits actually get run (no operation, skip to next byte for instruction) and eventually the jump_to_code which goes back to the part of the buffer where the payload of the exploit is. These sort of buffer overflow exploits are not only very CPU specific but often operating system specific as it's making great assumptions about things like valid CPU op-codes and library calls. These bugs are often introduced by the use of the C function fgets() and similar which receives a sting from an input stream and puts it into a buffer without regard to length of the buffer. It's so frequent that gcc warns you about it's use now. Typically you specify a maximum number of characters to accept which presumably is less than or equal to the size of the buffer you allocated. -- ---GRiP--- Grant Parnell - SLUG President EverythingLinux services - the consultant's backup tech support. Web: http://www.elx.com.au/support.php We're also busybits.com.au and linuxhelp.com.au and everythinglinux.com.au. Phone 02 8756 3522 to book service or discuss your needs or email us at paidsupport at elx.com.au ELX or its employees participate in the following:- OSIA (Open Source Industry Australia) - http://www.osia.net.au AUUG (Australian Unix Users Group) - http://www.auug.org.au SLUG (Sydney Linux Users Group) - http://www.slug.org.au LA (Linux Australia) - http://www.linux.org.au -- SLUG - Sydney Linux User's Group Mailing List - http://slug.org.au/ Subscription info and FAQs: http://slug.org.au/faq/mailinglists.html
