[SLUG] Re: sending email from a laptop
On Thu, Aug 18, 2005 at 11:48:19AM +1000, Sonia Hamilton wrote: What I'd like to do is have some sort of mail server running on my laptop, and then have it try different SMTP servers until sending mail succeeds on one of them ie from my mail client send to 127.0.0.1:25 and have the listening program just work it out. At the moment I'm using Postfix - can I do this in Postfix? What about another mail transport program? You should be able to do that, just list multiple hosts in the relayhost config parameter. I'm not sure if 5xx errors will make it drop the e-mail, though, so try the config out on some test e-mails before you go the whole hog. An alternative which I use is to have a VPN connection back to my home base SMTP server, and I relay everything through that. It's much easier to debug problems that way. - Matt -- SLUG - Sydney Linux User's Group Mailing List - http://slug.org.au/ Subscription info and FAQs: http://slug.org.au/faq/mailinglists.html
[SLUG] Filesystem problem
Thanks very much for the quick response, Michael. If I understand correctly what you say, I can open the etc/fstab file in the shell I've been dropped to, edit the file appropriately and then save it. Then, still in the shell, I can issue the mount command regarding hdb3. Finally, I can reboot and all should be well. To take the first step, I'd need access to a text editor in the shell. Would vim or nano be capable of use in the shell in that way? I know those two programs are on my system, but really know little more about them than that. Thanks again, Leslie. -- 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: Filesystem problem
Hi Leslie, I think you'll find a vi variant (in this case, yes, vim) standard on every modern *nix... It's good to know the basics of vi even if you rarely use it. (For situations like these.) :) Regards, Michael Kraus Software Developer [EMAIL PROTECTED] Direct Line 02 8306 0007 -Original Message- From: Leslie Katz [mailto:[EMAIL PROTECTED] Sent: Thursday, 18 August 2005 4:24 PM To: slug@slug.org.au Cc: Michael Kraus Subject: Filesystem problem Thanks very much for the quick response, Michael. If I understand correctly what you say, I can open the etc/fstab file in the shell I've been dropped to, edit the file appropriately and then save it. Then, still in the shell, I can issue the mount command regarding hdb3. Finally, I can reboot and all should be well. To take the first step, I'd need access to a text editor in the shell. Would vim or nano be capable of use in the shell in that way? I know those two programs are on my system, but really know little more about them than that. Thanks again, Leslie. Wild Technology Pty Ltd , ABN 98 091 470 692 Sales - Ground Floor, 265/8 Lachlan Street, Waterloo NSW 2017 Admin - Level 4 Tiara, 306/9 Crystal Street, Waterloo NSW 2017 Telephone 1300-13-9453 | Facsimile 1300-88-9453 http://www.wildtechnology.net DISCLAIMER CONFIDENTIALITY NOTICE: The information contained in this email message and any attachments may be confidential information and may also be the subject of client legal - legal professional privilege. If you are not the intended recipient, any use, interference with, disclosure or copying of this material is unauthorised and prohibited. This email and any attachments are also subject to copyright. No part of them may be reproduced, adapted or transmitted without the written permission of the copyright owner. If you have received this email in error, please immediately advise the sender by return email and delete the message from your system. -- SLUG - Sydney Linux User's Group Mailing List - http://slug.org.au/ Subscription info and FAQs: http://slug.org.au/faq/mailinglists.html
[SLUG] Freedb CD Catalogue
Hi all, If anyone is using freedb can you drop me aline to explain how it works? I am trying to gte my ageing head around it. Seems as if you set up a freedb server and then use a range of freedb software to access it? OLMC Simon Bryan IT Manager [EMAIL PROTECTED] LMB 14 North Parramatta Direct Number:88381200 SwitchBoard: 96833300 fax: 98901466 mobile: 0414238002 _ ella for Spam Control has removed 161 Spam messages and set aside 224 Later for me You can use it too - and it's FREE! www.ellaforspam.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] Freedb CD Catalogue
$quoted_author = Simon ; If anyone is using freedb can you drop me aline to explain how it works? I am trying to gte my ageing head around it. Seems as if you set up a freedb server and then use a range of freedb software to access it? not quite. someone else is running the freedb.org server and you can interface software to it or query it manually via the website. you need the central server to gain the benefits of somone else having already entered the detail for the CD. if no one has yet, you can contribute the details and help the community out. have a read about CDDB http://freedb.org/modules.php?name=Sectionssop=viewarticleartid=1 and then why you would use freedb http://freedb.org/modules.php?name=Sectionssop=viewarticleartid=2 cheers marty -- It's hard to be religious when certain people are never incinerated by bolts of lightning. -- Calvin -- 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 Ethernet Bridging - Is there a legitimate use?
Lindsay Holmwood [EMAIL PROTECTED] wrote: Out of interest, why did you do that? So ethernet packets on the wired (physically secured) network aren't broadcast over the wireless (completely unsecured) network. -- Sam Eddie Couter | mailto:[EMAIL PROTECTED] Debian Developer| mailto:[EMAIL PROTECTED] | jabber:[EMAIL PROTECTED] OpenPGP fingerprint: A46B 9BB5 3148 7BEA 1F05 5BD5 8530 03AE DE89 C75C signature.asc Description: Digital signature -- 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] Xen and the art of disk allocation
[EMAIL PROTECTED] [EMAIL PROTECTED] wrote: My plan is: /dev/hdb1 gentoo, xen kernel install, mbr etc /dev/hdb2 debian install bootable from xen or standard mbr /dev/hdb3 something else... [ ... ] There are other ways of doing this. I think I could be using weird file systems to pretend they are partions for example. Does anyone have any thoughts? LVM is a very useful and flexible way to partition disks. LVM volumes can be resized, moved, activated and deactivated on the fly. If you use ext2 you don't even need to unmount it to enlarge it. Some filesystems can't be shrunk but can be enlarged. To use LVM effectively, you probably want to make the drive one big partition (plus maybe a small /boot partition depending on how you boot the machine), make that partition a physical volume, then allocate bits of it to as many logical volumes as you want. Excellent documentation in the HOWTO at: http://www.tldp.org/HOWTO/LVM-HOWTO/ Disclaimer: I haven't used xen and don't really know how well it plays with LVM, although Google has enlightened me somewhat. -- Sam Eddie Couter | mailto:[EMAIL PROTECTED] Debian Developer| mailto:[EMAIL PROTECTED] | jabber:[EMAIL PROTECTED] OpenPGP fingerprint: A46B 9BB5 3148 7BEA 1F05 5BD5 8530 03AE DE89 C75C signature.asc Description: Digital signature -- 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 Ethernet Bridging - Is there a legitimate use?
In the beginnig, the network bridge (Bridge) was invented to join two or more networks as one. We'd usually use the word network segments. Some technologies have limits on delay (eg: coax ethernet) and others have limitations on length (eg: token ring) and the physical signal regeneration from bridging allows some of those limits to start over. Then Cisco invented the Router, and the Bridge dropped in popularity because Routers are easier to implement and manage. And because bridges and routers of that era were essentially the same technology, and thus near the same price. So you'd select a router because a routed network is more robust to errors (eg, faulty NIC cards). Then with many Routers on the network performance dropped due to latency caused by routing and many network engineers realised that they needed the bridge to minimize latency. I'd have to disagree there. The two-port bridge never really made a come-back, whereas two-port routers are still useful. Rather the next change was driven by the desire to have a single cabling plant -- unshielded twisted pair -- and the deployment of repeater hubs. Over time as switch ASIC priced dropped those repeater hubs became switching hubs (a switch of course being nothing more than a bridge implemented in ASIC). Bridges work on layer-two whilst routers work on layer-three. In this view, it is deemed to be less risky It not the risk but the cost and configuration effort. Ten ports of GbE switch are about $500. 10 ports of GbE router are about $10,000. Switches at a site pretty much all have an identical configuration. Routers are configuration intensive. Also there's the question of multi-protocol support. If you've got a stack of ancient protocols to run then switching (which is L3 protocol-independent) is attractive. When you need to route the usual solution is to run VLANs up to a Linux box or other fine multiprotocol router. The move to transparent layer two firewalls isn't really a switching/routing decision so much as firewall vendors trying to offer a device with a low attack profile (eg, no IP address in the forwarding path) and which is configuration free (as least as far as the networking, not the security policy). Unfortunately, that falls apart when you want the firewall to understand the network topology (such as participate in selection of a fallback route). and came up with the term transparent bridging. Transparent bridging is an old notion -- all ethernet bridges are transparent. The concept of 'transparency' is that the neither the transmitting or recieving host need make special arrangements for the bridging to succeed. You can compare this with AX.25 bridging, where each transmitted frame contains a list of bridge addresses for the packet to follow. A transparent firewall is where the insertion of the firewall doesn't alter the IP forwarding path. By not appearing as an IP entity it is difficult to launch a DoS attack against the firewall (not really true, but that's the notion). There are other ideas around bridges Probably the major warning is that interfaces of the same bridge should not be connected to the same network segment. This causes a broadcast flood. There is a protocol, IEEE 802.1D Spanning tree, to prevent these loops. But spanning tree is an insecure protocol, and prone to users doing nasty stuff. A lot of switch ports offer a port security feature which downs the port upon seeing two MAC addresses. So you configure host-facing ports with port security and bridge-facing ports with spanning tree. -- 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] kdeinit using 99% of processor
elliott-brennan wrote: If I kill konqueror, it all goes back to normal. I'm not sure why it would be using so much of the cpu. I've done a quick google, and though others seem to have experienced the same, I couldn't quite find a solution... maybe I'm too tired (it is a bit late :)) Any ideas These are usually an infinite loop in the code (usually because of a lack of correct error handling). The Linux scheduler arranges things to this CPU-bound process doesn't effect other processes. -- SLUG - Sydney Linux User's Group Mailing List - http://slug.org.au/ Subscription info and FAQs: http://slug.org.au/faq/mailinglists.html
[SLUG] Informal (very...) audio/music gathering
Hi all, Just to confirm a very informal gathering of anyone interested in audio/music this Saturday at Macquarie Uni. Meeting of SLUGAMuSIG - Audio/ Music Special Interest Group When: Saturday, August 18th; 10:30am - 4:00pm Where: Macquarie University, Department of Contemporary Music Studies, building W6A, room 608 The best way to get to the Music Department (on the 6th floor of building W6A) is from the Balaclava Rd entrance (opposite Woolies from Epping Rd). The closest parking is W4, and costs $8.00 for the whole day. For people arriving at various times through the day, the front door may be locked, but we'll keep an eye out, or call Denis on 0408 478 802. -- Department of Contemporary Music Studies Macquarie University NSW 2109, Australia +61 2 9850 6787; http://www.dcms.mq.edu.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] Software Freedom Day
On 18/08/2005, at 1:10 PM, QuantumG wrote: So is anyone planning activities for Software Freedom Day? Need any help? Yeap, and it's looking pretty awesome. Check out http://maitri.ubuntu.com/softwarefreedomday/wiki/index.php/ Sydney and if you're available, like the page says, let Pia or I know. -Chris. -- SLUG - Sydney Linux User's Group Mailing List - http://slug.org.au/ Subscription info and FAQs: http://slug.org.au/faq/mailinglists.html
[SLUG] Problem with modem
Hi I have a problem with my external modem on my fedora 4 install, basically since I replaced my mother board with a Gigabyte 204 RZ series mother board (12BB1-81845GVMRZ-00) basically I cannot get the software to pick up the modem on /dev/stty0 or whatever it's called again, where as this XP daul boot picks it up no trouble :-( any ideas?? -- SLUG - Sydney Linux User's Group Mailing List - http://slug.org.au/ Subscription info and FAQs: http://slug.org.au/faq/mailinglists.html
[SLUG] Problem with external modem
Hi I just replaced my mother board as the old one died now on the old one I connected to the net via an external modem using /dev/stty0 or some name like that to get what windows calls com1, and all worked nicely, with the new mother board a GIGABYTE 2004 RZ series (12BB1-81845GVMRZ-00) I cannot get the software to find the modem all I get is a fail with error code 8, but every thing works fine from this XP boot :(, any idea's please?? -- 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] timeline generation software
Hi Benno, gplot should do it I think http://gplot.sourceforge.net/ Cheers, Thomas Am Donnerstag, 18. August 2005 07:33 schrieb Benno: Does anyone know of some (open source) software that will generate a pretty look timeline? I'd like something that takes: 1975 Foo 1976 Bar 1980 Baz 1985 Qar and produces something like this in EPS: + | 1975 19801985 |Foo Baz Qar +-+--+-+--+ 1976 Bar I'm sure I could manually do this in Xfig, but that will take me all day. I'm also sure I could write something myself to do it but that sounds like perverse procrastination, so I'd prefer not to. Thanks, Benno -- 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] Switching a website to ssl
Hi To create the cert it is maybe a good idea to look at http://www.cacert.org/ There you can create signed certificates for free. Cheers, Thomas Am Mittwoch, 17. August 2005 01:18 schrieb Julio Cesar Ody: The whole application to be accessed via SSL? If yes, then the steps are: - create the certificates. ... We have a web application served by apache (2.0.52-9) that we want to switch from normal http to https. I suspect this is relatively simple, but - how do I do it? -- Regards, Edwin Humphries -- 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 Ethernet Bridging - Is there a legitimate use?
Glen Turner wrote: In the beginnig, the network bridge (Bridge) was invented to join two or more networks as one. We'd usually use the word network segments. Some technologies have limits on delay (eg: coax ethernet) and others have limitations on length (eg: token ring) and the physical signal regeneration from bridging allows some of those limits to start over. Then Cisco invented the Router, and the Bridge dropped in popularity because Routers are easier to implement and manage. And because bridges and routers of that era were essentially the same technology, and thus near the same price. So you'd select a router because a routed network is more robust to errors (eg, faulty NIC cards). Then with many Routers on the network performance dropped due to latency caused by routing and many network engineers realised that they needed the bridge to minimize latency. I'd have to disagree there. The two-port bridge never really made a come-back, whereas two-port routers are still useful. +-+-+-+-+-+-+-+-+ From: [EMAIL PROTECTED] (E.J.Leoni-Smith) Organization: ElectricMail News Service snipped In general bridge for performance and route for security. Routing enforces pre-deetermined segmntation. Bridging tends to adapt to the traffic. Routing also restricts broadcasts, so it tends to keep inter segment traffic to a minimum Bridging is easier to make work at very high throughputs: there is less computation per packet I think. snipped +-+-+-+-+-+-+-+-+ From: David Devereaux-Weber [EMAIL PROTECTED] Organization: TELECOM Digest snipped If your network is IP, much of the broadcast traffic (like ARP packets) can be kept off narrow bandwidth long delay circuits like the satellite link. So, in a purely local, wide bandwidth network, a bridge has less latency than a router, but in a narrow, long delay network like one with a satellite link, a router can reduce broadcast traffic and improve performance on many protocols. snipped +-+-+-+-+-+-+-+-+ Rather the next change was driven by the desire to have a single cabling plant -- unshielded twisted pair -- and the deployment of repeater hubs. Over time as switch ASIC priced dropped those repeater hubs became switching hubs (a switch of course being nothing more than a bridge implemented in ASIC). Bridges work on layer-two whilst routers work on layer-three. In this view, it is deemed to be less risky It not the risk but the cost and configuration effort. Ten ports of GbE switch are about $500. 10 ports of GbE router are about $10,000. Switches at a site pretty much all have an identical configuration. Routers are configuration intensive. Also there's the question of multi-protocol support. If you've got a stack of ancient protocols to run then switching (which is L3 protocol-independent) is attractive. When you need to route the usual solution is to run VLANs up to a Linux box or other fine multiprotocol router. The move to transparent layer two firewalls isn't really a switching/routing decision so much as firewall vendors trying to offer a device with a low attack profile (eg, no IP address in the forwarding path) and which is configuration free (as least as far as the networking, not the security policy). Unfortunately, that falls apart when you want the firewall to understand the network topology (such as participate in selection of a fallback route). and came up with the term transparent bridging. Transparent bridging is an old notion -- all ethernet bridges are transparent. The concept of 'transparency' is that the neither the transmitting or recieving host need make special arrangements for the bridging to succeed. You can compare this with AX.25 bridging, where each transmitted frame contains a list of bridge addresses for the packet to follow. A transparent firewall is where the insertion of the firewall doesn't alter the IP forwarding path. By not appearing as an IP entity it is difficult to launch a DoS attack against the firewall (not really true, but that's the notion). There are other ideas around bridges Probably the major warning is that interfaces of the same bridge should not be connected to the same network segment. This causes a broadcast flood. There is a protocol, IEEE 802.1D Spanning tree, to prevent these loops. But spanning tree is an insecure protocol, and prone to users doing nasty stuff. A lot of switch ports offer a port security feature which downs the port upon seeing two MAC addresses. So you configure host-facing ports with port security and bridge-facing ports with spanning tree. -- 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] kdeinit using 99% of processor
On Wed, 17 Aug 2005 23:16, elliott-brennan [EMAIL PROTECTED] wrote:
'top' is revealing a kdeinit process using 99% of the CPU.
I've identified the process as konqueror:
ps aux | grep 13081
patrick 13081 47.4 4.9 38052 24696 ? R23:01 1:51 kdeinit:
konqueror --silent
patrick 13129 0.0 0.1 5640 688 pts/2R+ 23:05 0:00 grep 13081
[EMAIL PROTECTED] ~]$
If I kill konqueror, it all goes back to normal. I'm not sure why it
would be using so much of the cpu. I've done a quick google, and though
others seem to have experienced the same, I couldn't quite find a
solution... maybe I'm too tired (it is a bit late :))
I have this problem from time to time, and it is usually fixed by restarting
the fam daemon.
--
Sridhar Dhanapalan [Yama | http://www.pclinuxonline.com/]
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The world's shortest poem:
Me, Oui. -- Muhammad Ali
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[SLUG] Upcoming Perl courses in Sydney
Brought to you with the blessings of your committee. 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 Provide your SLUG membership number when you book to get the discounted rates (a saving of $50 per course). Course TitleRunning DateCost Std Cost --- Introduction to Perl20th - 21st September $1050 $1100 Intermediate Perl 22nd - 23rd September $1050 $1100 Web Development with Perl 28th - 29th November$1050 $1100 Melbourne only, by Dr Damian Conway -- Perl Best Practices^14th - 15th November$1100** Understanding Regular Expressions^22nd November $660** ^ - These courses are being taught by Dr Damian Conway, author of Object Oriented Perl, and Perl 6 language designer. If you'd like to see us run these courses in Sydney, please get in contact with me. ** - Please note that this price is the result of a short term special on these courses. Please see our website for more information. Early Bird Special -- Increase the value of the course by taking advantage of our early bird special!Book and pay by the early bird date to get a free book of your choice. Books can be selected from: http://perltraining.com.au/books/ and are valued between $50 - $100 RRP. Early Bird dates: - Intro/Intermediate:*26th August* Dr Damian Conway's:30th September Web Development:4th November Don't forget to mention your SLUG membership number when you book to recieve your discount! All the best, Jacinta Richardson PS: Want to receive useful tips about the Perl programming language to make your coding easier? Tips about Perl's core features, useful modules, tricks and traps, and recent developments? Then sign up to our Perl Tips mailing list: http://perltraining.com.au/cgi-bin/mailman/listinfo/perl-tips Some past tips can be found at: http://perltraining.com.au/tips/ -- (`-''-/).___..--''`-._ | 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] Last Chance to speak at OSDC
G'day everyone, Put your OSDC proposal in TODAY at: http://osdc2005.cgpublisher.com/cfp.html I'm sorry if you're already sick of the idea but for those who *intend* to submit a paper proposal ... eventually please be aware that TODAY is the last day proposals are being accepted. Are you a developer? If so, then you should seriously consider proposing a talk. What would you talk about? Well, how about that really cool library/module/project that you used recently which saved your hours? How about the project you're working on now? Does your work involve a lot of text processing -- What has that taught you? Do you use your language to develop cool things like cochlear implants or monitor heart rates or predict earthquakes? Do you write documentation for an open-source project? Do you want to tell us about it? About the project, about the documenting, soft skills, hard skills, propose a talk. Are you kind of good at using an open-source tool? Could you stand up and introduce it to the rest of us? Those who already know everything about it won't be there at your talk to belittle you, they'll be at another talk. You'll have an audience of people who want to know about your favourite toy. Is there something you'd like to learn about? Like how to do profiling, or how to use a particular tool? Perhaps proposing a paper and getting it accepted will be a good motivational tool for learning. Do you know things about soft-skills that you feel your peers could learn from such as how to network more effectively, or present at conferences, or write a paper or run a users' group? Propose a talk, soft skills are important too. This conference is being run to foster and grow the open source community. As far as I can tell, this warmly includes you. Please think hard about whether you can contribute something. It's a great opportunity for you to get your name in lights, have fun and be recognised. The conference was lots of fun last year and I'm anticipating it being even better this year. If you can't propose a talk or if it doesn't get accepted I hope you'll come along anyway. I estimate (pure guess work, I'm not on the committee) that the entrance cost will be about $300. Speakers get in for free. All the best, Jacinta -- (`-''-/).___..--''`-._ | 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
