Discuss November 2007

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256 participants
327 discussions

Kernel panic - where to go from here?
by Mike 30 Nov '07

30 Nov '07

CentOS 5 has been running continuously since 9/21 on my "do everything" home server (with the exception of a kernel update). It's a fairly old Athlon machine that serves as a firewall and various servers (dovecot, samba, NFS, dhcp, OpenVPN, etc). I connected via OpenVPN about a week ago and discovered I get a kernel panic. I've since found that this is very repeatable and happens only after being connected via OpenVPN for about 4 hours or so. I was able to manually copy the stuff on the console after the panic (see below). I googled "unable to handle kernel paging request" and didn't really find anything useful (to me). I've tried both kernel version 2.6.18-8.1.14.el5 and 2.6.18-8.1.15.el5 as well as OpenVPN versions 2.1_rc4-1 and 2.0.9 all with the same results. Not sure where to go with this(?). Should I post this on a kernel mailing list? Or somewhere else? Call Trace: [<C040502c>] dump_trace+0x8c/0x96 [<c0405046>] show_trace_log_lvl+0x10/0x20 [<c04050e2>] show_stack_log_lvl+0x8c/0x94 [<c040520f>] show_registers+0x125/0x191 [<c0404c3b>] kernel_thread_helper+0x7/0x10 [<c0405411>] die+0x196/0x296 [<c05fd73f>] do_page_fault+0x3ea/0x4b8 [<c0434d15>] kthread+0x0/0xeb [<c05fd355>] do_page_fault+0x0/0x4b8 [<c0404a71>] error_code+0x39/0x40 [<c0434d15>] kthread+0x0/0xeb [<c0404c3b>] kernel_thread_helper+0x7/0x10 BUG: unable to handle kernel paging request at virtual address c0613dbf Printing eip: c0404c44 *pde = 2f9b5163 Recursive die() failure, output suppressed <0>Kernel panic - not syncing: Fatal exception -- Thanks, Mike

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network interface activation order
by Graham Johnston 30 Nov '07

30 Nov '07

I am using CentOS as a firewall/router. I am using bonded interfaces, vlan interfaces, and bridge interfaces. My problem currently is that on boot the system is attempting to activate the bridge interface before it's bonded-vlan members have been created. What this means is that the bridge is created but not activated. Is there anyway for me to influence the activation order and have bridge interfaces dealt with last? Graham Johnston Manager, Network Services Westman Communications Group 204.571.7225 johnstong(a)westmancom.com

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Re: [CentOS] CleanLog.h
by B.J. McClure 30 Nov '07

30 Nov '07

On Fri, 2007-11-30 at 12:22 -0500, Alfredo Perez wrote: > > > > > > Hi Can you tell me which virus scan you are using? > > > > > > Thanks > > > > Can you share your findings with us? Yes, however this thread will be dead from my end for the next 2 weeks due to travel. I am taking some files from the compromised machine and hope to be able to spend a little time with them. B.J. > Furthermore, this question is for the list > > I have a Centos 5 server running sshd > for me to signon and check my emails. > > I use denyhosts to protect port 22. > > Is there anyother software you people use > to protect your servers. > > Thanks in advance > > Alfredo - The sauce > > _______________________________________________ > CentOS mailing list > CentOS(a)centos.org > http://lists.centos.org/mailman/listinfo/centos CentOS 5.0, Linux 2.6.18-8.1.15.el5 x86_64 11:33:51 up 1 day, 5:53, 1 user, load average: 0.03, 0.02, 0.00

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CentOS /boot kernel files removed after rpm upgrades
by Dave 30 Nov '07

30 Nov '07

Hello, I ran a yum update on a centos 5 machine. I then removed some old kernel files, 2.6.x.14 and 2.6.x.10 older kernels. The issue is i got the error "Grub can not create template". I checked /boot and it is now empty. If i reboot this box it certainly will have an issue. I'm running the latest kernel 2.6.x.15 i believe it is. Can anyone tell me how to fix this? Thanks. Dave.

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Load-Balancing Virtualized Guests
by Alvin Chang 30 Nov '07

30 Nov '07

Hi everyone: According to "Automated failover and recovery of virtualized guests in Advanced Platform", one can easily migrate virtualized guests around different hosts. However, is it currently possible for CentOS 5 with Virtualization&Clustering Suite to migrate guests dynamically according to loads on different hosts? Thanks, -- Alvin Chang Yu-Ming

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what's the equivalent to sendmail's Timeout.queuewarn in POSTFIX
by Indunil Jayasooriya 30 Nov '07

30 Nov '07

Hi, I am ruunig postfix and MailScanner as a Mailgw on Centos 4.5. I want to know what is default warntime in Postfix? I.e - *what's the equivalent to sendmail's Timeout.queuewarn in POSTFIX ? . ANY IDEAS? *** -- Thank you Indunil Jayasooriya

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Good evening to all
by Silambarasan.R 30 Nov '07

30 Nov '07

Hi.. Could u help me to re-install the centos 4 without affecting existing data...? is it possible? if so pl let me know... Regards Silambu.R

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Re: [CentOS] CleanLog.h
by B.J. McClure 30 Nov '07

30 Nov '07

On Fri, 2007-11-30 at 07:40 -0500, Alfredo Perez wrote: > On Thu, Nov 29, 2007 at 04:43:44PM -0600, B.J. McClure wrote: > > Sad to say one of my file servers was exploited and used to run a > > Phishing scam. Have identified subject virus amongst other things. It > > appears twice in a virus scan; /sbin/z (which I assume can just be > > deleted) and /sys/bus/serio/drivers/atkbd/description. The latter file > > is also present in identical uninfected machines. I have been unable to > > open the file, even with root privileges, although it appears to be a > > text file. Any suggestions on how to proceed appreciated. Guess I > > could delete it and copy over the file from an identical machine. > > > > Thanks in advance, > > B.J. > > > > CentOS 5.0, Linux 2.6.18-8.1.15.el5 x86_64 16:26:48 up 10:46, 1 user, > > load average: 0.07, 0.08, 0.04 > > Hi Can you tell me which virus scan you are using? > > Thanks avg75flr-r49-a1130.i386.rpm B.J. CentOS 5.0, Linux 2.6.18-8.1.15.el5 x86_64 07:26:34 up 1 day, 1:45, 1 user, load average: 0.30, 0.13, 0.09

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CleanLog.h
by B.J. McClure 30 Nov '07

30 Nov '07

Sad to say one of my file servers was exploited and used to run a Phishing scam. Have identified subject virus amongst other things. It appears twice in a virus scan; /sbin/z (which I assume can just be deleted) and /sys/bus/serio/drivers/atkbd/description. The latter file is also present in identical uninfected machines. I have been unable to open the file, even with root privileges, although it appears to be a text file. Any suggestions on how to proceed appreciated. Guess I could delete it and copy over the file from an identical machine. Thanks in advance, B.J. CentOS 5.0, Linux 2.6.18-8.1.15.el5 x86_64 16:26:48 up 10:46, 1 user, load average: 0.07, 0.08, 0.04

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CentOS-announce Digest, Vol 33, Issue 15
by centos-announce-request＠centos.org 30 Nov '07

30 Nov '07

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-2007:1084 Critical CentOS 3 i386 seamonkey - security update (Tru Huynh) 2. CESA-2007:1084 Critical CentOS 3 x86_64 seamonkey - security update (Tru Huynh) 3. CESA-2007:1082 Critical CentOS 3 i386 firefox - security update (CENTOSPLUS only) (Tru Huynh) 4. CESA-2007:1082 Critical CentOS 3 x86_64 firefox - security update (CENTOSPLUS only) (Tru Huynh) 5. CESA-2007:1084 Critical CentOS 3 s390(x) seamonkey - security update (Pasi Pirhonen) 6. CESA-2007:1063 Important CentOS 3 ia64 pcre - security update (Pasi Pirhonen) 7. CESA-2007:1063 Important CentOS 3 s390(x) pcre - security update (Pasi Pirhonen) 8. CESA-2007:1068 Important CentOS 4 ia64 pcre - security update (Pasi Pirhonen) 9. CESA-2007:1063 Important CentOS 3 i386 pcre - security update (Tru Huynh) 10. CESA-2007:1063 Important CentOS 3 x86_64 pcre - security update (Tru Huynh) 11. CESA-2007:1068 Important CentOS 4 s390(x) pcre - security update (Pasi Pirhonen) 12. CESA-2007:1084-01: Critical CentOS 2 i386 seamonkey security update (John Newbigin) 13. CESA-2007:1065-01: Moderate CentOS 2 i386 pcre security update (John Newbigin) ---------------------------------------------------------------------- Message: 1 Date: Thu, 29 Nov 2007 14:04:23 +0100 From: Tru Huynh <tru(a)centos.org> Subject: [CentOS-announce] CESA-2007:1084 Critical CentOS 3 i386 seamonkey - security update To: centos-announce(a)centos.org Message-ID: <20071129130423.GA19200(a)sillage.bis.pasteur.fr> Content-Type: text/plain; charset="us-ascii" CentOS Errata and Security Advisory CESA-2007:1084 seamonkey security update for CentOS 3 i386: https://rhn.redhat.com/errata/RHSA-2007-1084.html The following updated file has been uploaded and is currently syncing to the mirrors: i386: updates/i386/RPMS/seamonkey-1.0.9-0.7.el3.centos3.i386.rpm updates/i386/RPMS/seamonkey-chat-1.0.9-0.7.el3.centos3.i386.rpm updates/i386/RPMS/seamonkey-devel-1.0.9-0.7.el3.centos3.i386.rpm updates/i386/RPMS/seamonkey-dom-inspector-1.0.9-0.7.el3.centos3.i386.rpm updates/i386/RPMS/seamonkey-js-debugger-1.0.9-0.7.el3.centos3.i386.rpm updates/i386/RPMS/seamonkey-mail-1.0.9-0.7.el3.centos3.i386.rpm updates/i386/RPMS/seamonkey-nspr-1.0.9-0.7.el3.centos3.i386.rpm updates/i386/RPMS/seamonkey-nspr-devel-1.0.9-0.7.el3.centos3.i386.rpm updates/i386/RPMS/seamonkey-nss-1.0.9-0.7.el3.centos3.i386.rpm updates/i386/RPMS/seamonkey-nss-devel-1.0.9-0.7.el3.centos3.i386.rpm source: updates/SRPMS/seamonkey-1.0.9-0.7.el3.centos3.src.rpm You may update your CentOS-3 i386 installations by running the command: yum update seamonkey Tru -- Tru Huynh (CentOS-3 i386/x86_64 Package Maintenance) http://pgp.mit.edu:11371/pks/lookup?op=get&search=0xBEFA581B

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Discuss November 2007