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Re: [CentOS] Emergency rescue help needed
by Scott Silva 05 Feb '09

05 Feb '09

on 2-3-2009 11:57 PM Sorin Srbu spake the following: >> -----Original Message----- >> From: centos-bounces(a)centos.org [mailto:centos-bounces@centos.org] On Behalf Of >> Scott Silva >> Sent: Tuesday, February 03, 2009 10:45 PM >> To: centos(a)centos.org >> Subject: Re: [CentOS] Emergency rescue help needed >> >> I just had a Back-UPS of about 1998 vintage burst into flames about 6 months >> ago. Luckily, someone was near it and grabbed a fire extinguisher. It was a >> Saturday, and if this person hadn't been in on overtime, who knows what would >> have happened. > > Geez... I have a UPS for my admin-workstation just under the desk on the floor > in front of me. Suddenly I feel a bit anxious about that... > Looking again at the incident report, I think the unit might have been even older. It was the older Back-ups with the white metal case instead of black. It could have been mid-90's. Before me no one kept track of a lot of that stuff. -- MailScanner is like deodorant... You hope everybody uses it, and you notice quickly if they don't!!!!

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Re: [CentOS] Emergency rescue help needed
by Scott Silva 04 Feb '09

04 Feb '09

on 2-4-2009 7:16 AM Sorin Srbu spake the following: >> -----Original Message----- >> From: centos-bounces(a)centos.org [mailto:centos-bounces@centos.org] On Behalf > Of >> Toby Bluhm >> Sent: Wednesday, February 04, 2009 3:44 PM >> To: CentOS mailing list >> Subject: Re: [CentOS] Emergency rescue help needed >> >> Oh, there's lots of bad stuff that can happen to your home . . . >> >> http://blog.cleveland.com/metro/2009/01/eastlake_city_and_state.html > > UFO:s blew up their house? I hear they are quite common in the US. ;-) > > Or a meth lab. http://carcino.gen.nz/images/index.php/35a796d8/567e04e7 -- MailScanner is like deodorant... You hope everybody uses it, and you notice quickly if they don't!!!!

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squid stops working several times a day
by Alexander Farber 04 Feb '09

04 Feb '09

Hello, I have a problem here with: [root@ablprx01 squid]# cat /etc/*release CentOS release 5.2 (Final) [root@ablprx01 squid]# rpm -qa|grep -i squid squid-2.6.STABLE6-5.el5_1.3 The web proxy process (used by 300-400 users) seems to run ok: [root@ablprx01 squid]# ps uawwwx|grep squid root 2304 0.0 0.0 7792 1268 ? Ss 08:45 0:00 squid -D squid 3082 27.7 0.9 46912 37068 ? R 10:21 32:18 (squid) -D squid 3083 0.0 0.0 1508 232 ? Ss 10:21 0:00 (unlinkd) [root@ablprx01 squid]# netstat -an|grep LISTEN tcp 0 0 0.0.0.0:8080 0.0.0.0:* LISTEN tcp 0 0 0.0.0.0:3128 0.0.0.0:* LISTEN ......... but periodically it will stop working (web pages can't be displayed). The "service squid restart" command will display a lot of dots ..... but doesn't help and I have to reboot. I've checked /var/log/messages and also /var/log/squid/* but don't see any warning there. ifconfig doesn't report any errors: [root@ablprx01 squid]# ifconfig eth0 Link encap:Ethernet HWaddr 00:16:35:5B:39:AE inet addr:10.121.42.32 Bcast:10.121.255.255 Mask:255.255.0.0 inet6 addr: fe80::216:35ff:fe5b:39ae/64 Scope:Link UP BROADCAST RUNNING MULTICAST MTU:1500 Metric:1 RX packets:989588 errors:0 dropped:0 overruns:0 frame:0 TX packets:1150056 errors:0 dropped:0 overruns:0 carrier:0 collisions:0 txqueuelen:1000 RX bytes:590019020 (562.6 MiB) TX bytes:639895003 (610.2 MiB) Interrupt:185 and the disk space is plenty. Has anybody had a similar problem and how would you debug it please? Thank you for any hints Alex PS: Below my config file: [root@ablprx01 squid]# grep -v ^# /etc/squid/squid.conf | grep -v ^$ http_port 3128 http_port 8080 hierarchy_stoplist cgi-bin ? acl QUERY urlpath_regex cgi-bin \? cache deny QUERY acl apache rep_header Server ^Apache broken_vary_encoding allow apache cache_dir ufs /var/spool/squid 40000 16 256 access_log /var/log/squid/access.log squid dns_defnames on refresh_pattern ^ftp: 1440 20% 10080 refresh_pattern ^gopher: 1440 0% 1440 refresh_pattern . 0 20% 4320 acl all src 0.0.0.0/0.0.0.0 acl manager proto cache_object acl localhost src 127.0.0.1/255.255.255.255 acl to_localhost dst 127.0.0.0/8 acl SSL_ports port 443 acl Safe_ports port 80 # http acl Safe_ports port 21 # ftp acl Safe_ports port 443 # https acl Safe_ports port 70 # gopher acl Safe_ports port 210 # wais acl Safe_ports port 1025-65535 # unregistered ports acl Safe_ports port 280 # http-mgmt acl Safe_ports port 488 # gss-http acl Safe_ports port 591 # filemaker acl Safe_ports port 777 # multiling http acl CONNECT method CONNECT http_access allow manager localhost http_access deny manager http_access deny !Safe_ports http_access deny CONNECT !SSL_ports acl our_networks src 10.121.0.0/16 172.25.0.0/16 10.122.1.0/24 http_access allow our_networks http_access allow localhost http_access deny all http_reply_access allow all icp_access allow all cache_mgr it(a)XXXXXX.com coredump_dir /var/spool/squid

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CentOS-announce Digest, Vol 48, Issue 2
by centos-announce-request＠centos.org 04 Feb '09

04 Feb '09

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-2008:0973 Important CentOS 3 ia64 kernel - security update (Pasi Pirhonen) 2. CESA-2008:0973 Important CentOS 3 s390(x) kernel - security update (Pasi Pirhonen) 3. CESA-2008:1037 Critical CentOS 3 ia64 seamonkey - security update (Pasi Pirhonen) 4. CESA-2008:1037 Critical CentOS 3 s390(x) seamonkey - security update (Pasi Pirhonen) 5. CESA-2009:0020 Moderate CentOS 3 ia64 bind - security update (Pasi Pirhonen) 6. CESA-2009:0005 Moderate CentOS 3 ia64 gnome-vfs2 - security update (Pasi Pirhonen) 7. CESA-2009:0020 Moderate CentOS 4 ia64 bind - security update (Pasi Pirhonen) 8. CESA-2009:0005 Moderate CentOS 4 ia64 gnome-vfs2 - security update (Pasi Pirhonen) 9. CESA-2009:0020 Moderate CentOS 3 i386 bind - security update (Tru Huynh) 10. CESA-2009:0020 Moderate CentOS 3 x86_64 bind - security update (Tru Huynh) 11. CESA-2009:0257 Critical CentOS 3 i386 seamonkey - security update (Tru Huynh) 12. CESA-2009:0257 Critical CentOS 3 x86_64 seamonkey - security update (Tru Huynh) ---------------------------------------------------------------------- Message: 1 Date: Wed, 4 Feb 2009 16:55:50 +0200 From: Pasi Pirhonen <upi(a)centos.fi> Subject: [CentOS-announce] CESA-2008:0973 Important CentOS 3 ia64 kernel - security update To: centos-announce(a)centos.org Message-ID: <20090204145550.GH13827(a)centos.fi> Content-Type: text/plain; charset="us-ascii" CentOS Errata and Security Advisory 2008:0973 https://rhn.redhat.com/errata/RHSA-2008-0973.html The following updated files have been uploaded and are currently syncing to the mirrors: ia64: updates/ia64/RPMS/kernel-2.4.21-58.EL.ia64.rpm updates/ia64/RPMS/kernel-doc-2.4.21-58.EL.ia64.rpm updates/ia64/RPMS/kernel-source-2.4.21-58.EL.ia64.rpm updates/ia64/RPMS/kernel-unsupported-2.4.21-58.EL.ia64.rpm -- Pasi Pirhonen - upi(a)iki.fi - http://pasi.pirhonen.eu/ Top-postings silently ignored

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Missing latest kmod-xfs and kmod-drbd82?
by Alan Sparks 04 Feb '09

04 Feb '09

Since December there have been several kernel updates to the centosplus repository for centos4... but no updates to kmod-xfs or kmod-drbd82. Latest kernel is 2.6.9-78.0.13.plus.c4, but latest kmod-xfs is 2.6.9_78.0.5.plus.c4. Latest drbd82 kmod is also for 78.0.5. I know there was a mention on the list that these modules are not kernel dependent anymore... but yum and rpm seem to indicate otherwise, and trying to install kmod-xfs-smp or update kmod-drbd82-smp on my servers is not possible. $ rpm -qRp kmod-xfs-smp-0.4-1.el4.2.6.9_78.0.5.plus.c4.x86_64.rpm /bin/sh /bin/sh /sbin/depmod /sbin/depmod kernel-smp-x86_64 = 2.6.9-78.0.5.plus.c4 rpmlib(CompressedFileNames) <= 3.0.4-1 rpmlib(PayloadFilesHavePrefix) <= 4.0-1 rpmlib(VersionedDependencies) <= 3.0.3-1 Above, the last available version of the module shows a dependency on the 78.0.5 kernel. These modules will of course also install in the wrong /lib/modules/ location. I've over the last two months opened tickets on bugs.centos.org on the issue (tickets 3360, 3316, 3291). However, these tickets are still new and have had no comments. Anyone have any advice on dealing with the missing RPMs or the dependency issue? Thanks in advance. -Alan

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Re: [CentOS] Emergency rescue help needed
by Rainer Duffner 04 Feb '09

04 Feb '09

Sorin Srbu schrieb: >> -----Original Message----- >> From: centos-bounces(a)centos.org [mailto:centos-bounces@centos.org] On Behalf Of >> Scott Silva >> Sent: Tuesday, February 03, 2009 10:45 PM >> To: centos(a)centos.org >> Subject: Re: [CentOS] Emergency rescue help needed >> >> I just had a Back-UPS of about 1998 vintage burst into flames about 6 months >> ago. Luckily, someone was near it and grabbed a fire extinguisher. It was a >> Saturday, and if this person hadn't been in on overtime, who knows what would >> have happened. >> > > Geez... I have a UPS for my admin-workstation just under the desk on the floor > in front of me. Suddenly I feel a bit anxious about that... There's a reason I don't like running anything beyond my ALIX-router 24x7 at home (while I'm away). And it's not the power-bill. IMO, UPSs don't really belong in the living-room. Doesn't really matter if they are old or new. Imagine returning home from work, only to find only the smoldering remainders of what was your house in the morning... Rainer

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kickstart won't kick-off via network
by Isaac Hailperin 04 Feb '09

04 Feb '09

Hello list, I try to do an automated network installation of centos 5.2, following the redat documentation at http://www.redhat.com/docs/manuals/enterprise/RHEL-4-Manual/sysadmin-guide/… However, when installing I get promptet for various things, like which network interface I would like to use for installation, or the location of the install medium. But thats not what I wanted, I want to start the boot process, and then leave the box untill it is installed. What I did: First a manual install form DVD. I then used the kickstart file /root/anaconda-ks.cfg for a network installation. I changed the install line from cdrom to url: install url --url http://9.0.0.1/all/repository/CentOS5.2 This url contains the whole DVD (and can be viewed in a webbrowser). Then I generated the following entry in my pxe control file (default): LABEL centos5.2_cluto_cnode MENU LABEL CentOS 5.2 cluto ^node kernel distro/centos5.2/vmlinuz append initrd=distro/centos5.2/initrd.img ramdisk_size=7494 ks=http://9.0.0.1/all/profiles/cluto_centos5.2/cnode/ks.cfg This is part of a boot menue, therefor the MENU entry. The url of the kickstart file is also valid, I can wget it. Now since I get asked all these questions at boot time, I suspect that the kickstart file is not there to answer these questions. I would be greatful for any suggestions on how to further debug or solve this. Isaac _____________________________________________________________________ Vorstand: Ertu Uysal, Axel Queck Vorsitzender des Aufsichtsrats: Bernhard Bruscha Sitz der Gesellschaft: Tuebingen Amtsgericht Stuttgart HRB 381299 Diese E-Mail enthaelt vertrauliche und/oder rechtlich geschuetzte Informationen. Wenn Sie nicht der richtige Adressat sind oder diese E-Mail irrtuemlich erhalten haben, informieren Sie bitte sofort den Absender und vernichten Sie diese Mail. Das unerlaubte Kopieren sowie die unbefugte Weitergabe dieser Mail ist nicht gestattet. This e-mail may contain confidential and/or privileged information. If you are not the intended recipient (or have received this e-mail in error) please notify the sender immediately and destroy this e-mail. Any unauthorized copying, disclosure or distribution of the material in this e-mail is strictly forbidden.

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Re: [CentOS] kickstart won't kick-off via network
by Isaac Hailperin 04 Feb '09

04 Feb '09

> Especially since FDD aren't that common anymore... I'll see if I can't adapt > my SOP:s to boot and install from network. The set up is actually not too complicated. I really recommend it, you just plug in the computer and let it install. There are various variants, you can either define what will be installed by naming the pxe controll file according to the mac address, or you can make a default boot menue. Boot menues are described here: http://syslinux.zytor.com/wiki/index.php/PXELINUX#Custom_Menu_Example_with_… good luck, Isaac _____________________________________________________________________ Vorstand: Ertu Uysal, Axel Queck Vorsitzender des Aufsichtsrats: Bernhard Bruscha Sitz der Gesellschaft: Tuebingen Amtsgericht Stuttgart HRB 381299 Diese E-Mail enthaelt vertrauliche und/oder rechtlich geschuetzte Informationen. Wenn Sie nicht der richtige Adressat sind oder diese E-Mail irrtuemlich erhalten haben, informieren Sie bitte sofort den Absender und vernichten Sie diese Mail. Das unerlaubte Kopieren sowie die unbefugte Weitergabe dieser Mail ist nicht gestattet. This e-mail may contain confidential and/or privileged information. If you are not the intended recipient (or have received this e-mail in error) please notify the sender immediately and destroy this e-mail. Any unauthorized copying, disclosure or distribution of the material in this e-mail is strictly forbidden.

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Re: [CentOS] Emergency rescue help needed
by Les Mikesell 04 Feb '09

04 Feb '09

Sorin Srbu wrote: > > The voltage has been fairly constant here over the years since I started using > UPS and logging the voltage and stuff, 238V more or less constantly. It rarely > drops below 236V or over 240V. We mainly use the UPS:es to have controlled > shutdowns should the power fail entirely - We had some issues a few years back > while they built a new school the other side of the road when the power went > up and down for a uyear or so, and the diesel-generators didn't start up as > expected. This whole building where I work is supposed to be a wartime > hospital with power-backups up to yinyang. But it failed when we needed > them... #=;-( It's a tough thing to get right. I've been involved with several systems and they all failed a time or two in initial testing even after everyone thought they should work. And then things break after that... > > It might be that the power is too high, although the standard is 240V in > Europe AFAIK. Or the UPS-units *may* have been rated for the previous lower > voltage-level at 220V, but that sounds a bit farfetched IMO. Unless the units > were a (very much) older batch that APC dumped on us... Another issue can be that you aren't backing up the air conditioner power, so when the grid goes down your still-running equipment overheats, damaging the electronics. This is particularly likely if your servers are racked densely in a small space. -- Les Mikesell lesmikesell(a)gmail.com

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Re: [CentOS] kickstart won't kick-off via network
by Isaac Hailperin 04 Feb '09

04 Feb '09

> >Now since I get asked all these questions at boot time, I suspect that > >the kickstart file is not there to answer these questions. > > It does use it, it just doesn't find the network-block in ks.cfg. Does your > ks.cfg contain some lines for the networking? Yes: # Kickstart file automatically generated by anaconda. install url --url http://9.0.0.1/all/repository/CentOS5.2 [...] network --device eth0 --bootproto dhcp --hostname node1.cluster network --device eth1 --bootproto dhcp --hostname node1.cluster [...] > You didn't modify the ks.cfg you > mention above, did you? Yes, I modified the part after install. It used to be "cdrom". > You can open the ks.cfg you already have and then tweak with the wizard. I opened the ks.cfg with system-config-kickstart. I configured it to install from network. It produced the following: #platform=x86, AMD64, or Intel EM64T # System authorization information auth --useshadow --enablemd5 # System bootloader configuration bootloader --append="rhgb quiet" --location=mbr --driveorder=sda # Partition clearing information clearpart --linux --drives=sda # Use graphical install graphical # Firewall configuration firewall --disabled # Run the Setup Agent on first boot firstboot --disable # System keyboard keyboard us # System language lang en_US # Installation logging level logging --level=info # Use network installation url --url=http://9.0.0.1/all/repository/CentOS5.2 # Network information network --bootproto=dhcp --device=eth0 --onboot=on network --bootproto=dhcp --device=eth1 --onboot=on #Root password rootpw --iscrypted $xxx # SELinux configuration selinux --disabled # System timezone timezone --isUtc America/New_York # Install OS instead of upgrade install # X Window System configuration information xconfig --defaultdesktop=GNOME --depth=8 --resolution=640x480 --startxonboot # Disk partitioning information part / --bytes-per-inode=4096 --fstype="ext3" --size=25000 part swap --bytes-per-inode=4096 --size=8000 part /home --bytes-per-inode=4096 --fstype="ext3" --grow --size=100 %packages @base-x Now in conjunction with the kernel parameter ksdevice=eth1 (thank you Kai!) this works like a charm. I seems that I misunderstood the use of "install" and "url". - Comming form SLES and autoyast I thought I should avoid the gui, but kickstart seems to do better here - Thank you! Isaac _____________________________________________________________________ Vorstand: Ertu Uysal, Axel Queck Vorsitzender des Aufsichtsrats: Bernhard Bruscha Sitz der Gesellschaft: Tuebingen Amtsgericht Stuttgart HRB 381299 Diese E-Mail enthaelt vertrauliche und/oder rechtlich geschuetzte Informationen. Wenn Sie nicht der richtige Adressat sind oder diese E-Mail irrtuemlich erhalten haben, informieren Sie bitte sofort den Absender und vernichten Sie diese Mail. Das unerlaubte Kopieren sowie die unbefugte Weitergabe dieser Mail ist nicht gestattet. This e-mail may contain confidential and/or privileged information. If you are not the intended recipient (or have received this e-mail in error) please notify the sender immediately and destroy this e-mail. Any unauthorized copying, disclosure or distribution of the material in this e-mail is strictly forbidden.

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