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Kernel debug info?
by Ross S. W. Walker 09 Sep '07

09 Sep '07

Ok, I got blktrace installed, but I also have some blktrace system taps that I want to test out, but it seems I need to have the kernel debug info installed to get systemtap working. Anyone know where the CentOS kernel-debuginfo RPMs are located? Ross S. W. Walker Information Systems Manager Medallion Financial, Corp. 437 Madison Avenue 38th Floor New York, NY 10022 Tel: (212) 328-2165 Fax: (212) 328-2125 WWW: http://www.medallion.com <http://www.medallion.com/> ______________________________________________________________________ This e-mail, and any attachments thereto, is intended only for use by the addressee(s) named herein and may contain legally privileged and/or confidential information. If you are not the intended recipient of this e-mail, you are hereby notified that any dissemination, distribution or copying of this e-mail, and any attachments thereto, is strictly prohibited. If you have received this e-mail in error, please immediately notify the sender and permanently delete the original and any copy or printout thereof.

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Where is the blktrace utility?
by Ross S. W. Walker 08 Sep '07

08 Sep '07

I keep reading that RHEL/CentOS 5 supports blktrace, but I can't seem to find the blktrace/blkparse utilities. Is it that just the functionality is available in the kernel, but the user is left to have to hunt down the latest versions of the utilities on the net? If anybody knows where to get the latest versions of these utilities I would greatly appreciate it. Ross S. W. Walker Information Systems Manager Medallion Financial, Corp. 437 Madison Avenue 38th Floor New York, NY 10022 Tel: (212) 328-2165 Fax: (212) 328-2125 WWW: http://www.medallion.com <http://www.medallion.com/> ______________________________________________________________________ This e-mail, and any attachments thereto, is intended only for use by the addressee(s) named herein and may contain legally privileged and/or confidential information. If you are not the intended recipient of this e-mail, you are hereby notified that any dissemination, distribution or copying of this e-mail, and any attachments thereto, is strictly prohibited. If you have received this e-mail in error, please immediately notify the sender and permanently delete the original and any copy or printout thereof.

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CentOS promotion team at T-DOSE in Eindhoven (NL) on 13-14 Oct 2007
by Dag Wieers 08 Sep '07

08 Sep '07

Hi everybody, CentOS will be present for the first time at the Technical Dutch Open Source Event (T-DOSE) in Eindhoven, NL. We have a booth at the entrance as well as a presentation about Virtualization, presented by Daniel de Kok (danieldk). No doubt the presentation will include information about the new CentOS Virtualization SIG ! (Other topics are still accepted for T-DOSE) If you're interested to be more involved with CentOS, helping out at the booth, volunteering to give a presentation or organising your own presence or event is a good way to meet CentOS community members and users. Feel free to contact me for more information or join the centos-promo mailinglist and introduce yourself. More information about the T-DOSE event and other events is available from: http://wiki.centos.org/Events Hope to see you there ! -- -- dag wieers, dag(a)wieers.com, http://dag.wieers.com/ -- [Any errors in spelling, tact or fact are transmission errors]

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CentOS-announce Digest, Vol 31, Issue 5
by centos-announce-request＠centos.org 08 Sep '07

08 Sep '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-2007:0892 Important CentOS 5 i386 krb5 Update (Karanbir Singh) 2. CESA-2007:0892 Important CentOS 5 x86_64 krb5 Update (Karanbir Singh) 3. CESA-2007:0774 Moderate CentOS 4 ia64 kernel - security update (Pasi Pirhonen) 4. CESA-2007:0774 Moderate CentOS 4 s390(x) kernel - security update (Pasi Pirhonen) ---------------------------------------------------------------------- Message: 1 Date: Fri, 7 Sep 2007 14:58:22 +0100 From: Karanbir Singh <kbsingh(a)centos.org> Subject: [CentOS-announce] CESA-2007:0892 Important CentOS 5 i386 krb5 Update To: centos-announce(a)centos.org Message-ID: <20070907135822.GA9041(a)base.karan.org> Content-Type: text/plain; charset=us-ascii CentOS Errata and Security Advisory 2007:0892 Important Upstream details at : https://rhn.redhat.com/errata/RHSA-2007-0892.html The following updated files have been uploaded and are currently syncing to the mirrors: ( md5sum Filename ) i386: a1d0cdc2d0aee3ccc91570be993235fb krb5-devel-1.5-29.i386.rpm a8bc7053d1fd39e314dfc661cc002863 krb5-libs-1.5-29.i386.rpm 9fe17f11a71022293df4e0a525878e88 krb5-server-1.5-29.i386.rpm becc87a5fe8617951fd9627698bf56e7 krb5-workstation-1.5-29.i386.rpm Source: a5eab669d31c125ad810e3af7c6e6f14 krb5-1.5-29.src.rpm -- Karanbir Singh CentOS Project { http://www.centos.org/ } irc: z00dax, #centos(a)irc.freenode.net ------------------------------ Message: 2 Date: Fri, 7 Sep 2007 14:58:22 +0100 From: Karanbir Singh <kbsingh(a)centos.org> Subject: [CentOS-announce] CESA-2007:0892 Important CentOS 5 x86_64 krb5 Update To: centos-announce(a)centos.org Message-ID: <20070907135822.GA9056(a)base.karan.org> Content-Type: text/plain; charset=us-ascii CentOS Errata and Security Advisory 2007:0892 Important Upstream details at : https://rhn.redhat.com/errata/RHSA-2007-0892.html The following updated files have been uploaded and are currently syncing to the mirrors: ( md5sum Filename ) x86_64: a1d0cdc2d0aee3ccc91570be993235fb krb5-devel-1.5-29.i386.rpm 487e0ba94deb2471964ed57d816e64b1 krb5-devel-1.5-29.x86_64.rpm a8bc7053d1fd39e314dfc661cc002863 krb5-libs-1.5-29.i386.rpm 75e61ecc62ced140b3499f2faa988433 krb5-libs-1.5-29.x86_64.rpm 4d8aa721603b574cf7fb87395e1e693d krb5-server-1.5-29.x86_64.rpm a2976a29ca09f0d5aadb0c8a02b2fc93 krb5-workstation-1.5-29.x86_64.rpm Source: a5eab669d31c125ad810e3af7c6e6f14 krb5-1.5-29.src.rpm -- Karanbir Singh CentOS Project { http://www.centos.org/ } irc: z00dax, #centos(a)irc.freenode.net ------------------------------ Message: 3 Date: Sat, 8 Sep 2007 00:31:08 +0300 From: Pasi Pirhonen <upi(a)centos.fi> Subject: [CentOS-announce] CESA-2007:0774 Moderate CentOS 4 ia64 kernel - security update To: centos-announce(a)centos.org Message-ID: <20070907213108.GH18557(a)centos.fi> Content-Type: text/plain; charset="us-ascii" CentOS Errata and Security Advisory 2007:0774 https://rhn.redhat.com/errata/RHSA-2007-0774.html The following updated files have been uploaded and are currently syncing to the mirrors: ia64: updates/ia64/RPMS/kernel-2.6.9-55.0.6.EL.ia64.rpm updates/ia64/RPMS/kernel-devel-2.6.9-55.0.6.EL.ia64.rpm updates/ia64/RPMS/kernel-largesmp-2.6.9-55.0.6.EL.ia64.rpm updates/ia64/RPMS/kernel-largesmp-devel-2.6.9-55.0.6.EL.ia64.rpm -- Pasi Pirhonen - upi(a)iki.fi - http://pasi.pirhonen.eu/ Top-postings silently ignored

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asking for a repo
by manny＠cmc.cfg.sld.cu 08 Sep '07

08 Sep '07

Surfing on the web I had found a repo, I want to know how safe it is??? the URL is http://www.alcancelibre.org/al/el5/ sorry if a make any mistake on my writing. thanks to all -- “Nuestra recompensa se encuentra en el esfuerzo y no en el resultado. Un esfuerzo total es una victoria completa”. Mahatma Gandhi

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Re: [CentOS] Virtual Hosting
by Lanny Marcus 07 Sep '07

07 Sep '07

On 01 September 2007, William Warren <hescominsoon(a)emmanuelcomputerconsulting.com> wrote: > Message: 3 <snip> > you can also go with webmin to configure this stuff..<G> If you use Webmin, at this time, it is probably not a good idea to use SELinux with it. I have a very recent thread about this and there is a bug on Webmin. The SELinux folks are aware of it. Below is about SELinux. Lanny > This explanation and description of the problem are fine. We probably > need a custom policy for webmin to allow iptables to write to scripts > running as webmin, since catching stderr is important. There is no > file context that can be set to allow this. As I recall from the > original bug report, iptables was also trying to communicate with > another open file descriptor. This one I beleive should be closed on > exec.

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Help with External USB drive on RH/Centos 5
by Scott Ehrlich 07 Sep '07

07 Sep '07

Another issue to tackle - I have an external 1 TB drive (2 500GB on a RAID). When I plug it into the server, it sees, via /var/log/messages, that a USB device was plugged in, but that's it. fdisk -l doesn't see it. dmesg doesn't do much, either. It is a Western Digital My Book II device. I want to format it and use it for external storage, but can't until I get to it. What is the best way to get to the drive? Thanks. Scott

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RE: [CentOS] NIS binding probs w/Firewall and SELinux
by Plant, Dean 07 Sep '07

07 Sep '07

Scott Ehrlich wrote: > > Is there a file I can edit to ensure SELinux is disabled? The > system was initially installed with SELinux Enabled, then disabled > later by me. Are you aware of the commands getenforce & setenforce? Dean

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Problems in x86_64 Centos 5
by Erkki.Aalto＠Helsinki.FI 07 Sep '07

07 Sep '07

We upgraded a 64 bit server from Centos 4 to 5 and encountered some strange problems. Tcsh segfaulted irregurarily and emacs gave irregurarily strange error messages about regular expressions. Both problems disappeared when a 32-bit version was installed instead of the 64-bit. Ldconfig still occasionally segfaults. 64-bit servers where Centos 5 was installed from scratch have no problems. It is like there were some sort of remnant of the previous OS, but I can't figure out where. Strace of a 64-bit tcsh usually ends like this: open("/usr/lib/locale/locale-archive", O_RDONLY) = 3 fstat(3, {st_mode=S_IFREG|0644, st_size=55537056, ...}) = 0 mmap(NULL, 55537056, PROT_READ, MAP_PRIVATE, 3, 0) = 0x2aaaaaae0000 close(3) = 0 brk(0) = 0x15b30000 brk(0x15b30800) = 0x15b30000 --- SIGSEGV (Segmentation fault) @ 0 (0) --- +++ killed by SIGSEGV +++ and ltrace gives: __libc_start_main(0x405180, 1, 0x7fff89087298, 0x440b30, 0x440b20 <unfinished ...> setlocale(5, "" <unfinished ...> sbrk(0) = 0x141f1000 sbrk(2048) = 0xffffffffffffffff --- SIGSEGV (Segmentation fault) --- +++ killed by SIGSEGV +++ Does anyone have any ideas? -- Erkki 'Örkki' Aalto "Life is divided up into Internet: Erkki.Aalto(a)Helsinki.FI the horrible and the miserable" Snail: P.O. Box 64 FI-00014 University of Helsinki, Finland

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unable to add IP address to eth0:0 eth0:1 etc
by Ray Leventhal 07 Sep '07

07 Sep '07

Hi all, I need to (quickly!grrr) update IP addresses for which a given machine will answer. I did this: /sbin/ifconfig eth0:0 xx.xx.xx.10 netmask 255.255.255.0 /sbin/ifconfig eth0:1 xx.xx.xx.11 netmask 255.255.255.0 /sbin/ifconfig eth0:2 xx.xx.xx.30 netmask 255.255.255.0 /sbin/ifconfig eth0:3 xx.xx.xx.31 netmask 255.255.255.0 /sbin/ifconfig eth0:4 xx.xx.xx.13 netmask 255.255.255.0 /sbin/ifconfig eth0:5 xx.xx.xx.15 netmask 255.255.255.0 /sbin/ifconfig eth0:6 xx.xx.xx.20 netmask 255.255.255.0 /sbin/ifconfig eth0:7 xx.xx.xx.21 netmask 255.255.255.0 /sbin/ifconfig eth0:8 xx.xx.xx.22 netmask 255.255.255.0 but on looking at the output of /sbin/ifconfig, I see this: [root@sunspot ray]# /sbin/ifconfig eth0 Link encap:Ethernet HWaddr 00:00:C5:C2:1B:01 inet addr:64.135.16.15 Bcast:64.135.16.255 Mask:255.255.255.0 inet6 addr: fe80::200:c5ff:fec2:1b01/64 Scope:Link UP BROADCAST RUNNING MULTICAST MTU:1500 Metric:1 RX packets:5491775 errors:0 dropped:0 overruns:0 frame:0 TX packets:962501 errors:0 dropped:0 overruns:0 carrier:0 collisions:0 txqueuelen:1000 RX bytes:436018277 (415.8 MiB) TX bytes:156248463 (149.0 MiB) Interrupt:12 Base address:0xcf00 eth0:0 Link encap:Ethernet HWaddr 00:00:C5:C2:1B:01 inet addr:xx.xx.xx.10 Bcast:xx.xx.xx.255 Mask:255.255.255.0 UP BROADCAST RUNNING MULTICAST MTU:1500 Metric:1 Interrupt:12 Base address:0xcf00 eth0:1 Link encap:Ethernet HWaddr 00:00:C5:C2:1B:01 inet addr:xx.xx.xx.11 Bcast:xx.xx.xx.255 Mask:255.255.255.0 UP BROADCAST RUNNING MULTICAST MTU:1500 Metric:1 Interrupt:12 Base address:0xcf00 eth0:2 Link encap:Ethernet HWaddr 00:00:C5:C2:1B:01 inet addr:xx.xx.xx.30 Bcast:xx.xx.xx.255 Mask:255.255.255.0 UP BROADCAST RUNNING MULTICAST MTU:1500 Metric:1 Interrupt:12 Base address:0xcf00 eth0:3 Link encap:Ethernet HWaddr 00:00:C5:C2:1B:01 inet addr:xx.xx.xx.31 Bcast:xx.xx.xx.255 Mask:255.255.255.0 UP BROADCAST RUNNING MULTICAST MTU:1500 Metric:1 Interrupt:12 Base address:0xcf00 eth0:4 Link encap:Ethernet HWaddr 00:00:C5:C2:1B:01 inet addr:xx.xx.xx.13 Bcast:xx.xx.xx.255 Mask:255.255.255.0 UP BROADCAST RUNNING MULTICAST MTU:1500 Metric:1 Interrupt:12 Base address:0xcf00 eth0:5 Link encap:Ethernet HWaddr 00:00:C5:C2:1B:01 inet addr:xx.xx.xx.15 Bcast:xx.xx.xx.255 Mask:255.255.255.0 UP BROADCAST RUNNING MULTICAST MTU:1500 Metric:1 Interrupt:12 Base address:0xcf00 eth0:6 Link encap:Ethernet HWaddr 00:00:C5:C2:1B:01 inet addr:xx.xx.xx.20 Bcast:xx.xx.xx.255 Mask:255.255.255.0 UP BROADCAST RUNNING MULTICAST MTU:1500 Metric:1 Interrupt:12 Base address:0xcf00 eth0:7 Link encap:Ethernet HWaddr 00:00:C5:C2:1B:01 inet addr:xx.xx.xx.21 Bcast:xx.xx.xx.255 Mask:255.255.255.0 UP BROADCAST RUNNING MULTICAST MTU:1500 Metric:1 Interrupt:12 Base address:0xcf00 eth0:8 Link encap:Ethernet HWaddr 00:00:C5:C2:1B:01 inet addr:xx.xx.xx.22 Bcast:xx.xx.xx.255 Mask:255.255.255.0 UP BROADCAST RUNNING MULTICAST MTU:1500 Metric:1 Interrupt:12 Base address:0xcf00 lo Link encap:Local Loopback inet addr:127.0.0.1 Mask:255.0.0.0 inet6 addr: ::1/128 Scope:Host UP LOOPBACK RUNNING MTU:16436 Metric:1 RX packets:5744 errors:0 dropped:0 overruns:0 frame:0 TX packets:5744 errors:0 dropped:0 overruns:0 carrier:0 collisions:0 txqueuelen:0 RX bytes:591811 (577.9 KiB) TX bytes:591811 (577.9 KiB) And this, in /var/log/messages [root@sunspot ray]# tail /var/log/messages Sep 7 06:50:31 sunspot avahi-daemon[2203]: Registering new address record for xx.xx.xx.15 on eth0. Sep 7 06:50:31 sunspot avahi-daemon[2203]: Registering new address record for xx.xx.xx.20 on eth0. Sep 7 06:50:31 sunspot avahi-daemon[2203]: Withdrawing address record for xx.xx.xx.20 on eth0. Sep 7 06:50:31 sunspot avahi-daemon[2203]: Registering new address record for xx.xx.xx.20 on eth0. Sep 7 06:50:31 sunspot avahi-daemon[2203]: Registering new address record for xx.xx.xx.21 on eth0. Sep 7 06:50:31 sunspot avahi-daemon[2203]: Withdrawing address record for xx.xx.xx.21 on eth0. Sep 7 06:50:31 sunspot avahi-daemon[2203]: Registering new address record for xx.xx.xx.21 on eth0. Sep 7 06:50:33 sunspot avahi-daemon[2203]: Registering new address record for xx.xx.xx.22 on eth0. Sep 7 06:50:33 sunspot avahi-daemon[2203]: Withdrawing address record for xx.xx.xx.22 on eth0. Sep 7 06:50:33 sunspot avahi-daemon[2203]: Registering new address record for xx.xx.xx.22 on eth0. How can I get my NIC to accept traffic for these IPs? Thanks In Advance, ~Ray

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