Discuss

discuss@lists.centos.org

34758 discussions

Data recovery with superblocks?
by Scott Ehrlich 20 Aug '07

20 Aug '07

It recently occurred to me, as I was partitioning a RAID with fdisk, that when I built the system, I was presented with a graphical utility that "magically" created the partitions. Now, using fdisk, I was reminded of being given superblocks. Although I haven't used data recovery techniques using superblocks, is there a way to retrieve the superblock numbers the OS has assigned to a partition? Thanks. Scott

2 1

postfix - killed by signal 11 - debug help
by John Thomas 20 Aug '07

20 Aug '07

Any suggestions to help me troubleshoot a "killed by signal 11" problem with Postfix? I've Googled and fiddled, but cannot figure it out. I have no idea where to look/start. Based on this post, Wietse suggests this type of problem happens when there compiled with different libraries. I tried ldd on various programs and found they all seemed to line up, but I know little. http://www.security-express.com/archives/postfix/2005-12/0152.html Logs: [root@srv log]# grep 'killed by signal 11' maillog* maillog:Aug 19 13:50:21 srv postfix/master[2719]: warning: process /usr/libexec/postfix/smtpd pid 3996 killed by signal 11 maillog.1:Aug 12 07:01:18 srv postfix/master[20954]: warning: process /usr/libexec/postfix/local pid 25006 killed by signal 11 maillog.1:Aug 13 06:22:38 srv postfix/master[25310]: warning: process /usr/libexec/postfix/cleanup pid 1195 killed by signal 11 maillog.1:Aug 13 18:02:37 srv postfix/master[25310]: warning: process /usr/libexec/postfix/pipe pid 6419 killed by signal 11 maillog.1:Aug 14 07:37:41 srv postfix/master[11557]: warning: process /usr/libexec/postfix/smtp pid 12580 killed by signal 11 maillog.1:Aug 16 14:18:04 srv postfix/master[11557]: warning: process /usr/libexec/postfix/smtpd pid 5323 killed by signal 11 maillog.1:Aug 17 02:37:19 srv postfix/master[11557]: warning: process /usr/libexec/postfix/anvil pid 9575 killed by signal 11 maillog.1:Aug 18 03:02:46 srv postfix/master[11909]: warning: process /usr/libexec/postfix/proxymap pid 19937 killed by signal 11 maillog.1:Aug 19 03:38:28 srv postfix/master[22278]: warning: process /usr/libexec/postfix/proxymap pid 28403 killed by signal 11 maillog.2:Aug 6 07:13:42 srv postfix/master[20954]: warning: process /usr/libexec/postfix/cleanup pid 26753 killed by signal 11 maillog.2:Aug 6 17:45:42 srv postfix/master[20954]: warning: process /usr/libexec/postfix/smtpd pid 31635 killed by signal 11 maillog.3:Jul 31 22:40:54 srv postfix/master[20149]: warning: process /usr/libexec/postfix/smtpd pid 21654 killed by signal 11 maillog.3:Aug 3 00:57:53 srv postfix/master[20149]: warning: process /usr/libexec/postfix/cleanup pid 10409 killed by signal 11 maillog.4:Jul 28 03:37:04 srv postfix/master[3457]: warning: process /usr/libexec/postfix/cleanup pid 14690 killed by signal 11 maillog.4:Jul 28 09:05:51 srv postfix/master[17435]: warning: process /usr/libexec/postfix/smtp pid 17490 killed by signal 11 System: CentOS 5.0 - updated postfix-pflogsumm-2.3.3-2.el5.centos.mysql_pgsql postfix-2.3.3-2.el5.centos.mysql_pgsql pam_mysql-0.6.2-4 cyrus-sasl-plain-2.1.22-4 cyrus-sasl-2.1.22-4 cyrus-sasl-md5-2.1.22-4 cyrus-sasl-sql-2.1.22-4 cyrus-imapd-utils-2.3.8-9 cyrus-imapd-devel-2.3.8-9 cyrus-sasl-lib-2.1.22-4 cyrus-sasl-devel-2.1.22-4 cyrus-sasl-gssapi-2.1.22-4 cyrus-imapd-perl-2.3.8-9 cyrus-imapd-2.3.8-9 sqlgrey-1.7.6-1 clamav-db-0.91.1-1.el5.rf amavisd-new-2.5.2-1.el5.rf clamav-0.91.1-1.el5.rf mysql-5.0.22-2.1 mysql-server-5.0.22-2.1 mysql-devel-5.0.22-2.1 -- Sincerely, John Thomas

3 6

Correlate i/o with a process
by Mag Gam 19 Aug '07

19 Aug '07

Hello: I have a server with 2 HBAs, and the users keeps complaining about performance problems. My question is, how can I relate the process with high I/O wait? Also, is it possible to see how much data is being pushed thru by my 2 HBAs? TIA!

5 8

problem with fetchmail
by Rajeev R Veedu 19 Aug '07

19 Aug '07

Could someone form the list please let me know an equalent pop connector to fetchmail?. I have problem with fetchmail that it downloads only 99 mails and in the event of mails exceeding this limit will result a socket error. Fetchmail: Query status=2 (SOCKET) Thanks Rajeev R. Veedu

2 3

Install CentOS over FTP
by Mário Gamito 18 Aug '07

18 Aug '07

Hi, Sorry for the newbie question, I've been searching the CentOS site and googled, but I couldn't find an answer (probably my bad). I want to install CentOS 4.5, but I'm having troubles with my CD reader. How can I install it from an FTP server ? Any help would be appreciated. Warm Regards -- :wq! Mário Gamito

6 8

GNBD and DRBD kernel mods
by Bart 18 Aug '07

18 Aug '07

Hi all, I am using heartbeat and drbd on CentOS 5 (see http://www.centos.org/modules/newbb/viewtopic.php?topic_id=7816&forum=41 for details).. DRBD and heartbeat are working, and now I want to put GNBD on top on this. However, I installed the latest CentOS-plus kernel (2.6.18-8.1.8.el5.centos.plus) but there doesn't appear to be a kmod-gndb for this kernel. Looks like the latest kmod-gnbd is available for kernel 2.6.18-8.1.8.el5. But I cannot find a kmod-drbd for this kernel. Am I missing something or is this worth a entry in the buglist? Tnx! -- We've Got Your Name at http://www.mail.com ! Get a FREE E-mail Account Today - Choose From 100+ Domains

2 1

repost: SELinux questions, upon restarting BIND
by Ray Leventhal 18 Aug '07

18 Aug '07

As this remains an issue for me, I'm reposting. Please forgive the redundancy, but I've been unable to find the answer and am hoping for some guidance. Thanks in advance, ~Ray ==========Original Posts follow========== (full output is in the original thread) Ray Leventhal wrote: > > Hi all, > > > > On my newly up-and-running nameserver (CentOS 5), I noticed the > > following alerts in /var/log/messages after restarting BIND. (lines > > inserted to aid in reading). > > As I'm new to SELinux, I'm hoping for some pointers on 1) if this is an > > issue which simply *must* be addressed, or if it's something I should > > live with, and 2) how to eliminate the warming messages without > > sacrificing SELinux protections. The system does not have X installed, > > so 'setroubleshoot' isn't an option (unless there's a text equivalent). > > > > Thanks in advance for any opinions/suggestions/enlightenments :) > > > > ~Ray > > > > ============================================= > > Aug 16 07:12:23 sunspot setroubleshoot: SELinux is preventing > > /usr/sbin/named (named_t) "getattr" access to /dev/random > > (tmpfs_t). For complete SELinux messages. run sealert -l > > 1ab129b8-9f9f-48ae-a67e-d52f63a5fb5a > > ============================================= > > Aug 16 07:12:23 sunspot setroubleshoot: SELinux is preventing > > /usr/sbin/named (named_t) "read" access to random (tmpfs_t). For > > complete SELinux messages. run sealert -l > > b7014747-0d8d-443e-8b9a-af868976452d > > ============================================= > > > <big output snip> Update: A bit of searching found a thread which pointed here: http://www.webservertalk.com/message1323968.html This is a talk about Bind 9.x on RHEL4, but I think it applies to C5 as well as the issue is SELinux and chrooted BIND implementations. Problem is, I'm still not sure what should be done. I'd rather not disable SELinux protection by doing this: setsebool -P named_disable_trans=1 ...but the instructions for alerting SELinux to the chrooted file locations are a bit short of my (inexperienced) needs. Any help would be greatly appreciated. @Moderator: if this is truly off-topic, my apologies. Please let me know and I will post to an SELinux list. TIA, ~Ray _______________________________________________ CentOS mailing list CentOS(a)centos.org http://lists.centos.org/mailman/listinfo/centos

3 4

CPU and FBDIMM thermal monitoring
by Bernd Bartmann 17 Aug '07

17 Aug '07

I'm running Centos5 x86_64 on an ASUS DSBV-DX/SAS mainboard with a Xeon E5345 quad core CPU. The mainboard BIOS shows me all the thermal information about CPU and the FBDIMMs as well as the fan rotation speeds. ACPI is set to version 3.0 in the BIOS. Under Centos5 I can't see any of these information under /proc/acpi/thermal_zone. This directory is just empty. Do I have to load any special kernel modules to get the correct values? Of course I'd like to have acpid give alerts or shut down the system in case of overheating. Best regards, Bernd.

1 0

using fuse on centos 5 with xp
by Dave 17 Aug '07

17 Aug '07

Hello, Does anyone have a centos5 specific howto or setup notes for fuse? I want to use it to mount an xp ntfs drive on my centos5 box. Thanks. Dave.

5 9

Help in starting spamassassin
by Robert Moskowitz 17 Aug '07

17 Aug '07

I have installed spamassassin, per the instructions on Scalix's wiki, and it is working, with some important caviats. So I asked for help on the spamassassin user list, and got some, but I think I am butting up against some Centos specific issues... This is what I am seeing in the maillog: Aug 17 14:39:59 z9m9z sendmail[13082]: l7HIdvGf013082: Milter add: header: X-Spam-Checker-Version: SpamAssassin 3.1.9 (2007-02-13) on\n\tz9m9z.htt-consult.com Aug 17 14:39:59 z9m9z spamd[13032]: spamd: connection from localhost.localdomain [127.0.0.1] at port 40454 Aug 17 14:39:59 z9m9z spamd[13032]: spamd: setuid to root succeeded Aug 17 14:39:59 z9m9z spamd[13032]: spamd: still running as root: user not specified with -u, not found, or set to root, falling back to nobody at /usr/bin/spamd line 1161, <GEN10> line 4. Aug 17 14:39:59 z9m9z spamd[13032]: spamd: processing message <461628246.59720704082024(a)melitta.dk> for root:99 and: Aug 17 14:39:59 z9m9z spamd[13032]: mkdir /root/.spamassassin: Permission denied at /usr/lib/perl5/vendor_perl/5.8.8/Mail/SpamAssassin.pm line 1536 Aug 17 14:39:59 z9m9z spamd[13032]: locker: safe_lock: cannot create tmp lockfile /root/.spamassassin/auto-whitelist.lock.z9m9z.htt-consult.com.13032 for /root/.spamassassin/auto-whitelist.lock: Permission denied Aug 17 14:39:59 z9m9z spamd[13032]: auto-whitelist: open of auto-whitelist file failed: locker: safe_lock: cannot create tmp lockfile /root/.spamassassin/auto-whitelist.lock.z9m9z.htt-consult.com.13032 for /root/.spamassassin/auto-whitelist.lock: Permission denied So over at spamassassin list I was told not to let spamassassin run as root. To create a user: spamfilter. and add -u spamfilter to the start command. So I created the user and group. I ran the spamassassin --lint and -D --lint Then I went to /etc/rc.d/init.d/spamassassin and change the lines: # Set default spamd configuration. SPAMDOPTIONS="-d -c -m5 -H" SPAMD_PID=/var/run/spamd.pid to # Set default spamd configuration. SPAMDOPTIONS="-u spamfilter -d -c -m5 -H" SPAMD_PID=/var/run/spamd.pid And then did: /etc/rc.d/init.d/spamassassin restart and spamassassin is still running as root and I am still getting these errors....

2 2

Jump to page:

2026

2025

2024

2023

2022

2021

2020

2019

2018

2017

2016

2015

2014

2013

2012

2011

2010

2009

2008

2007

2006

2005

2004

Discuss