Discuss September 2006

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275 participants
362 discussions

RE: [CentOS] backup server..
by Sebastien Tremblay 15 Sep '06

15 Sep '06

Hey Tim, Found this during my evening reading! http://www.dur.ac.uk/a.d.stribblehill/mirrored_grub.html "The purpose of this document is to suggest a way of configuring grub on a system where the operating system is mirrored between two disks, so that if the first disk fails completely, the system will boot automatically from the second disk." Hope this helps! Seb. -----Original Message----- From: centos-bounces(a)centos.org [mailto:centos-bounces@centos.org] On Behalf Of TimJowers(a)Yahoo.Com Sent: Thursday, 14 September 2006 10:49 PM To: CentOS mailing list Subject: Re: [CentOS] backup server.. Maybe someone can clear up the grub conf for me. Has anyone gotten this to work: two IDE/ATA drivers. Slave is a spare duplicate of the master. Goal is to be able to boot to Spare at any time and run it instead. What step am I missing? When I tried to duplicate a system I failed using this method due to the /boot configuration being specific to the disk layout in the box. That is, if I copied disk A to disk B and then wanted to boot to B I believe I would have to remove A and strap B as the master. Combined SCSI and ATA totally failed on GRUB knowing which disk is which. Ended up having to first install the target slave disk and then moved the disk. Copied everything except /boot. My impression is RAID is the only thing which would work. My goal was actually to create several systems based on the install of one master system. The other systems had random numbers of disks and such. The only way i got it to work was Ch1Master had to be the boot disk in all of them. I mucked around with /boot/grub/grub.conf and device.map to no avail. Thanks, TimJowers --- Sebastien Tremblay <sebastien.tremblay(a)au.cmpmedica.com> wrote: > Hi, > > I've been playing with CentOS quite a bit lately (and I must say it's > growing on me!! :) and I was now able to convince my boss that we > could get a box and gradually start migrating our hosting from win2k3 > to centos. > > So anyway, I've got a new box at the colo ready up and running - P4 > 3Ghz w/HT 2Ghz RAM 2x70Gb HDD, running Centos4.4 fully up-to-date. Now > my two questions are; > > (1.) In terms of backup, I'd like to have a cron sending out an > nightly incremental backup of user files. I'd also like to have HDA to > be copied backed up entirely (maybe weekly) onto HDB (were're not > going to use 140GB anyway!) so that is hda crashes, I`d swap both of > the hdds and boot from the backup. Now for that second step, I was > reading that dd was quite CPU intensive? Would there be other > alternatives? Advices on doing backups? > > (2.) I've got no physical access to the box, and the box has obviously > no video or sound. Considering this, would it possible to remotely > administer the box using VNC in a GUI environment? - I figured 2Ghz > could probably handle me starting x sometimes...! So if possible.. How > would I do it? I`m assuming there are no `yum install x`.... > > Anyway.. Thanks for any input you may have on the both topics! > > Cheers, > > Seb. > > _____________________________________________________________________ > This message and any attachments are confidential and are solely > intended for the use of the addressee(s). If you are not the intended > recipient please contact the sender by reply email. Please also > disregard the contents of this email and delete and destroy any copies > immediately. CMPMedica Australia Pty Ltd does not accept liability for > the views expressed in this email or for the consequences of any > computer viruses that may be transmitted with this email. Also subject > to copyright, no part of this message should be reproduced or transmitted without written consent. > _______________________________________________ > CentOS mailing list > CentOS(a)centos.org > http://lists.centos.org/mailman/listinfo/centos > __________________________________________________ Do You Yahoo!? Tired of spam? Yahoo! Mail has the best spam protection around http://mail.yahoo.com _______________________________________________ CentOS mailing list CentOS(a)centos.org http://lists.centos.org/mailman/listinfo/centos _____________________________________________________________________ This e-mail has been scanned for viruses by MCI's Internet Managed Scanning Services - powered by MessageLabs. For further information visit http://www.mci.com _____________________________________________________________________ This message and any attachments are confidential and are solely intended for the use of the addressee(s). If you are not the intended recipient please contact the sender by reply email. Please also disregard the contents of this email and delete and destroy any copies immediately. CMPMedica Australia Pty Ltd does not accept liability for the views expressed in this email or for the consequences of any computer viruses that may be transmitted with this email. Also subject to copyright, no part of this message should be reproduced or transmitted without written consent.

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Re: CentOS-announce mailing list
by Neal Macklin 14 Sep '06

14 Sep '06

This is a small thing; apologize if it's been previously discussed. In user options for the CentOS-Announce mailing list options page: http://lists.centos.org/mailman/listinfo/centos-announce you can subscribe to architectures of interest. To receive posts about the i386 architecture, for example, the mailing list pattern (as a regexp) is: CentOS.4.i386 whereas the one for all 4.x architectures is: CentOS.4 The problem is that if you are only subscribed to the i386 subset you will miss architecture independent announcements, such as the recent ones regarding CentOS 4.4 availability. A solution would be to include a pattern for all relevant architectures on the subject line for general release announements, which would allow the existing regexp's to work. However this would make subject lines too long as John pointed out. Better might be to modify the existing regexps to additionally accept subject lines where no architecture is shown. Thanks, Neal

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benchmarking large RAID arrays
by chrism＠imntv.com 14 Sep '06

14 Sep '06

I'm just wondering what folks are using to benchmark/tune large arrays these days. I've always used bonnie with file sizes 2-3 times physical RAM. Maybe there's a better way? Cheers,

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Re: [CentOS] bind errors after yum update to 4.4 CentOs
by eric＠austinconventioncenter.com 14 Sep '06

14 Sep '06

> I recently upgraded my name server to CentOs 4.4 from CentOs 4.3 and bind > was one of the many packages upgraded. > > I get the following message when performing an rndc reload > > " rndc reload > rndc: connection to remote host closed > This may indicate that the remote server is using an older version of > the command protocol, this host is not authorized to connect, > or the key is invalid." > > which odd as I am doing this on the master dns server for the zones. > > I made sure that my key in rndc.key and rndc.conf match. > > Anyone else having similar issues? > > Thanks, > > Eric > Never mind. re-ran rndc-confgen for the 3rd time and it finally took. > _______________________________________________ > CentOS mailing list > CentOS(a)centos.org > http://lists.centos.org/mailman/listinfo/centos >

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bind errors after yum update to 4.4 CentOs
by eric＠austinconventioncenter.com 14 Sep '06

14 Sep '06

I recently upgraded my name server to CentOs 4.4 from CentOs 4.3 and bind was one of the many packages upgraded. I get the following message when performing an rndc reload " rndc reload rndc: connection to remote host closed This may indicate that the remote server is using an older version of the command protocol, this host is not authorized to connect, or the key is invalid." which odd as I am doing this on the master dns server for the zones. I made sure that my key in rndc.key and rndc.conf match. Anyone else having similar issues? Thanks, Eric

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CentOS-announce Digest, Vol 19, Issue 8
by centos-announce-request＠centos.org 14 Sep '06

14 Sep '06

Send CentOS-announce mailing list submissions to centos-announce(a)centos.org To subscribe or unsubscribe via the World Wide Web, visit http://lists.centos.org/mailman/listinfo/centos-announce or, via email, send a message with subject or body 'help' to centos-announce-request(a)centos.org You can reach the person managing the list at centos-announce-owner(a)centos.org When replying, please edit your Subject line so it is more specific than "Re: Contents of CentOS-announce digest..." Today's Topics: 1. CESA-2006:0658 Low CentOS 4 s390(x) wireshark - security update (Pasi Pirhonen) 2. Re: [CentOS-devteam] CESA-2006:0680 Important CentOS 4 ia64 gnutls - security update (Pasi Pirhonen) 3. CESA-2006:0680 Important CentOS 4 s390(x) gnutls - security update (Pasi Pirhonen) ---------------------------------------------------------------------- Message: 1 Date: Wed, 13 Sep 2006 21:10:15 +0300 From: Pasi Pirhonen <upi(a)centos.fi> Subject: [CentOS-announce] CESA-2006:0658 Low CentOS 4 s390(x) wireshark - security update To: centos-announce(a)centos.org Message-ID: <20060913181015.GF17774(a)centos.fi> Content-Type: text/plain; charset="us-ascii" CentOS Errata and Security Advisory 2006:0658 https://rhn.redhat.com/errata/RHSA-2006-0658.html The following updated files have been uploaded and are currently syncing to the mirrors: s390: updates/s390/RPMS/wireshark-0.99.3-EL4.2.s390.rpm updates/s390/RPMS/wireshark-gnome-0.99.3-EL4.2.s390.rpm s390x: updates/s390x/RPMS/wireshark-0.99.3-EL4.2.s390x.rpm updates/s390x/RPMS/wireshark-gnome-0.99.3-EL4.2.s390x.rpm -- Pasi Pirhonen - upi(a)iki.fi - http://pasi.pirhonen.eu/ Top-postings silently ignored

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backup server..
by Sebastien Tremblay 14 Sep '06

14 Sep '06

Hi, I've been playing with CentOS quite a bit lately (and I must say it's growing on me!! :) and I was now able to convince my boss that we could get a box and gradually start migrating our hosting from win2k3 to centos. So anyway, I've got a new box at the colo ready up and running - P4 3Ghz w/HT 2Ghz RAM 2x70Gb HDD, running Centos4.4 fully up-to-date. Now my two questions are; (1.) In terms of backup, I'd like to have a cron sending out an nightly incremental backup of user files. I'd also like to have HDA to be copied backed up entirely (maybe weekly) onto HDB (were're not going to use 140GB anyway!) so that is hda crashes, I`d swap both of the hdds and boot from the backup. Now for that second step, I was reading that dd was quite CPU intensive? Would there be other alternatives? Advices on doing backups? (2.) I've got no physical access to the box, and the box has obviously no video or sound. Considering this, would it possible to remotely administer the box using VNC in a GUI environment? - I figured 2Ghz could probably handle me starting x sometimes...! So if possible.. How would I do it? I`m assuming there are no `yum install x`.... Anyway.. Thanks for any input you may have on the both topics! Cheers, Seb. _____________________________________________________________________ This message and any attachments are confidential and are solely intended for the use of the addressee(s). If you are not the intended recipient please contact the sender by reply email. Please also disregard the contents of this email and delete and destroy any copies immediately. CMPMedica Australia Pty Ltd does not accept liability for the views expressed in this email or for the consequences of any computer viruses that may be transmitted with this email. Also subject to copyright, no part of this message should be reproduced or transmitted without written consent.

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RE: [CentOS] backup server..
by Sebastien Tremblay 14 Sep '06

14 Sep '06

> * In regards to nightly incremental backups, we simply use the > rsync utility to pull the backups from a server onto the backup > host also running linux You're actually not the first to mention rsync, I'll man rsync and see what I can get! > I would highly advise simply paying the money for a RAID > Controller card to handle all of this for you. You mentioned > that you do not have physical access to the server, so the > Raid card can easily handle hdd failures and send you an email > letting you know that you need to replace the other drive. That's actually a very good point. The only thing is that the machine doesn't generate any revenue and so it'll heavlily depend on the price of the RAID controler really... I know there is none at the moment which is why I was looking into dd and tar. I've read that dd physically read/write every blocks of the disk whereas tar handles `zero-files` differently... Thus my question! > Never a good idea to run X when you dont need to. All > Administration can be done via config files on the command-line > and any system-config gui programs usually have a commandline > replacement anyway. But if you really wanted X check out > 'yum grouplist' and 'yum groupinstall "X Window System"' Good point, and I'm fully aware that one of the reasons win2k3 requires so much ram is the bloody UI! But I figured that with 2 ghz... I might give it a try! My concern tho' is really about configuring X... I've installed Centos on a test server here, and the X config is based on the server video/audio cards + monitor... What happens there there are none!!? :P Thx for your time... You made me realise that even RAID1 could be usefull (don't know why, I was under the impression that with only two disks raid wasn't worth it...!? Cheers Brad! Seb. _____________________________________________________________________ This message and any attachments are confidential and are solely intended for the use of the addressee(s). If you are not the intended recipient please contact the sender by reply email. Please also disregard the contents of this email and delete and destroy any copies immediately. CMPMedica Australia Pty Ltd does not accept liability for the views expressed in this email or for the consequences of any computer viruses that may be transmitted with this email. Also subject to copyright, no part of this message should be reproduced or transmitted without written consent.

7 6

centos 4.2 and intel gigabit ethernet port
by Mark Quitoriano 14 Sep '06

14 Sep '06

Hi list, Im having a problem with intel 82573L Gigabit Ethernet Controller. Centos 4.2 can't detect this internal ethernet port my motherboard is an Intel Desktop Board D945PSN. when i type lspci the ethernet is identified but when i type dmesg i can't see the ethernet port. -- Regards, Mark Quitoriano, CCNA Fan the flame... http://www.spreadfirefox.com/?q=user/register&r=19441

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Xgl
by Nicholas Anderson 14 Sep '06

14 Sep '06

Hi all, have anybody already heard about Xgl? Do you know if there are rpm's for it? thx Nick -- Nicholas Anderson Administrador de Sistemas Unix LPIC-1 Certified Rede Fiocruz

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Discuss September 2006