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X Servers xorg.conf file changing.
by Don Krause 21 Apr '10

21 Apr '10

Twice now over the past year, I've had something edit the /etc/X11/xorg.conf file without user intervention. The machine in question is a 3 headed X-Terminal that displays the accelerator control system application for a medical proton accelerator, and operated by staff who do NOT have root or root like access (sudo) on the X-Term, as once it's configured, it should never need changing. It lives on a private network (Network? Actually a crossover cable to the Sun box in a protected environment) with no reachable route even from within the organization. Out of the blue, on 2 occasions now, an entry for 1 of the video cards (out of 3) has changed it's driver entry from "nvidia" to "nv". This, of course, prevents X from starting. This morning, while of the phone with the field service tech, I corrected the entry, set the xorg.conf file to 444, and when they rebooted the X-Term, it again changed the entry from "nvidia" to "nv". Again, I corrected the xorg.conf file, reset it to 444, and rebooted the X-Term again, and it started fine, no changes. This box does get rebooted quite frequently, yet the unexpected change has only happened 3 time total, once 6 months and probably 30+ reboots ago, and again twice this morning on back to back reboots. (Yet the third and forth reboots did NOT change the file) I've never seen this happen before, and am at a bit of a loss wondering where to look. CentOS 5.3, 2.6.18-128.1.6.el5 #1 The X-Term is diskless, boots via PXE from a Solaris 10 box. Diskless boot configured using stock Cent tools (system-config-diskless and friends) Any suggestion where to look would be appreciated. Thanks! -- Don Krause Head Systems Geek, Waver of Deceased Chickens. Optivus Proton Therapy, Inc. P.O. Box 608 Loma Linda, California 92354 909.799.8327 Tel 909.799.8366 Fax dkrause(a)optivus.com www.optivus.com "This message represents the official view of the voices in my head."

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CentOS-announce Digest, Vol 62, Issue 2
by centos-announce-request＠centos.org 21 Apr '10

21 Apr '10

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-2010:0348 Important CentOS 4 i386 kdebase - security update (Tru Huynh) 2. CESA-2010:0348 Important CentOS 4 x86_64 kdebase - security update (Tru Huynh) 3. CESA-2010:0360 Moderate CentOS 3 i386 wireshark - security update (Tru Huynh) 4. CESA-2010:0360 Moderate CentOS 3 x86_64 wireshark - security update (Tru Huynh) 5. CESA-2010:0360 Moderate CentOS 4 i386 wireshark - security update (Tru Huynh) 6. CESA-2010:0360 Moderate CentOS 4 x86_64 wireshark - security update (Tru Huynh) ---------------------------------------------------------------------- Message: 1 Date: Tue, 20 Apr 2010 18:36:19 +0200 From: Tru Huynh <tru(a)centos.org> Subject: [CentOS-announce] CESA-2010:0348 Important CentOS 4 i386 kdebase - security update To: centos-announce(a)centos.org Message-ID: <20100420163619.GA7513(a)sillage.bis.pasteur.fr> Content-Type: text/plain; charset="us-ascii" CentOS Errata and Security Advisory CESA-2010:0348 kdebase security update for CentOS 4 i386: https://rhn.redhat.com/errata/RHSA-2010-0348.html The following updated file has been uploaded and is currently syncing to the mirrors: i386: updates/i386/RPMS/kdebase-3.3.1-13.el4_8.1.i386.rpm updates/i386/RPMS/kdebase-devel-3.3.1-13.el4_8.1.i386.rpm source: updates/SRPMS/kdebase-3.3.1-13.el4_8.1.src.rpm You may update your CentOS-4 i386 installations by running the command: yum update kdebase Tru -- Tru Huynh (mirrors, CentOS-3 i386/x86_64 Package Maintenance) http://pgp.mit.edu:11371/pks/lookup?op=get&search=0xBEFA581B

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Announce: Node Assassin - Open hardware cluster fence device
by Digimer 21 Apr '10

21 Apr '10

Hi CentOS folks! A few days ago, I announced this to the Linux-Clustering mailing list. I think it might be of interest to some on this list, too, as most people who use CentOS are more "roll your own" types. This project was actually developed and tested on CentOS 5.4 x86_64. :) --------------------------------------------------------------------- I wanted to announce a new open hardware, open source cluster fence device: Node Assassin - http://nodeassassin.org After four months and a lot of help from friends at http://hacklab.to, the first version is done and ready for the lime light! (warts and all) It fully implements the FenceAgentAPI, including independent sensing of a Node's on/off status. There is a simple installer and uninstaller that has been tested on CentOS 5.x and should work on any system supporting Red Hat style clustering. It is built as a shield for the Arduino development platform and uses entirely "off the shelf" parts that can be ordered online or bought at most electronic parts shops. The software and build instructions are fully documented. The goal of this project is to let people build very inexpensive clusters on commodity hardware. The current version supports four nodes. If you want more nodes, simply build a second Node Assassin! The fence agent supports multiple simultaneous Node Assassins. It would also work wonderfully as a secondary fence device. This is my first "official" open source project, so I would love to hear some feedback even if you don't plan to use it yourself. :) If you don't want to build your own, I am working with an embedded systems engineer in the hope of having pre-built units available in the next few months. They will support 8 to 64 nodes each depending on the model. If you think you would be interested in this, please let me know. Whether these see the light of day or not largely depends on the feedback I get. Thanks for your time reading this! -- Digimer E-Mail: linux(a)alteeve.com AN!Whitepapers: http://alteeve.com Node Assassin: http://nodeassassin.org

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Strange new boot problem with CentOS 4 machine
by Bart Schaefer 21 Apr '10

21 Apr '10

I have a custom-built PC on which I've been running CentOS 4.x (kept up to the latest x) for a few years without any problems ... until this week. Last week I was out of town on an extended trip, so I shut the machine down and powered off my UPS, etc. When I returned on Saturday, I turned everything back on, and the machine seemed to be booting normally ... and then it just very abruptly turned itself off, and refused to power back on. A short while later I was able to restart it, but again it shut down during boot. I *think* all that matters is that I've waited "long enough," but I was also moving the case around to open it so there's a slight possibility that something is loose and being jostled back into connecting (but I really don't think so). After watching the boot messages carefully and comparing to rc.sysinit on a different CentOS 4 box, I've concluded that it's shutting down during loading of the "other" modules (after storage, network, and audio) parsed from the output of kmodule. Unfortunately rc.sysinit doesn't echo anything about what these modules might be. The only thing that's changed is that I swapped in a new USB mouse because the buttons on the old one were getting glitchy, but I tried leaving that unplugged and the boot still stops at the same place with the same symptoms. Does this sound familiar to anyone? Suggestions on what to do to either get past this or diagnose it further?

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CentOS 5 - locking out users afer 3 failed attempts
by Tom Brown 21 Apr '10

21 Apr '10

Hi I am trying to lock users after 3 attempts and then set the timeout before they can log in again. I thought i could achieve this with auth required pam_tally.so deny=3 unlock_time=600 in /etc/pam.d/system-auth but it seems to not be the case - I cant find a working config for this anywhere and i wonder if anyone has one they can share? thanks

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nscd does not resolve groups
by Marcus Moeller 21 Apr '10

21 Apr '10

Hi all, I have set up nscd on my CentOS 5 box with nss_ldap. getent shows all LDAP groups correctly but 'id' only shows the users primary group. Best Regards Marcus

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Re: [CentOS] How to display the IP on the welcome screen
by Georghy 21 Apr '10

21 Apr '10

Sorin Srbu a écrit : > From: centos-bounces(a)centos.org [mailto:centos-bounces@centos.org] On Behalf > Of Patrick DERWAEL > Sent: Tuesday, April 20, 2010 4:01 PM > To: centos(a)centos.org > Subject: [CentOS] How to display the IP on the welcome screen > > Hi all, > I'm running CentOS 5.4 in a VMware guest, with the host connected to a DHCP > enabled LAN > When CentOS comes up, I would like to see the IP adress displayed on the > welcome screen. > This would save me the hassle of logging in the VM, getting the IP, and > logging off before finally ssh'ing to the VM. > > ============= > > Is this to be shown on the GUI welcome screen or when you eg ssh in? > > > ------------------------------------------------------------------------ > > _______________________________________________ > CentOS mailing list > CentOS(a)centos.org > http://lists.centos.org/mailman/listinfo/centos > try a bash script like the following : #!/bin/sh ADRESS=`ifconfig | grep "inet addr" | awk '{print $2}' | sed s/addr:// | head -n 1` echo "The IP adress is : $ADRESS." > /etc/issue -- Cordialement, / Greetings, Georghy FUSCO

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Re: [CentOS] How to display the IP on the welcome screen
by Sorin Srbu 21 Apr '10

21 Apr '10

>-----Original Message----- >From: centos-bounces(a)centos.org [mailto:centos-bounces@centos.org] On Behalf >Of Sorin Srbu >Sent: Wednesday, April 21, 2010 9:12 AM >To: 'CentOS mailing list' >Subject: Re: [CentOS] How to display the IP on the welcome screen > >>-----Original Message----- >>From: centos-bounces(a)centos.org [mailto:centos-bounces@centos.org] On >Behalf >>Of Mogens Kjaer >>Sent: Wednesday, April 21, 2010 7:35 AM >>To: CentOS mailing list >>Subject: Re: [CentOS] How to display the IP on the welcome screen >> >>On 04/20/2010 07:49 PM, Patrick Derwael wrote: >>> Ideally, it should be displayed on the GUI, like the date/time and >hostname >> >>http://elder-geek.blogspot.com/2009/09/ip-address-on-gdm-login-page.html > >Thanks! > >Notes: If the default TreeFlower theme is being used, the path is ><</usr/share/gdm/themes/TreeFlower>> and the image to be used is >background.png. > >Testing this right now. Nope, didn't work. Any idea what might have gone wrong? The gdm theme etc is plain vanilla on my test-box. No customized settings or anything. -- /Sorin

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Re: [CentOS] How to display the IP on the welcome screen
by Patrick Derwael 21 Apr '10

21 Apr '10

Ideally, it should be displayed on the GUI, like the date/time and hostname -----Original Message----- From: centos-bounces(a)centos.org [mailto:centos-bounces@centos.org] On Behalf Of Sorin Srbu Sent: mardi 20 avril 2010 16:22 To: 'CentOS mailing list' Subject: Re: [CentOS] How to display the IP on the welcome screen From: centos-bounces(a)centos.org [mailto:centos-bounces@centos.org] On Behalf Of Patrick DERWAEL Sent: Tuesday, April 20, 2010 4:01 PM To: centos(a)centos.org Subject: [CentOS] How to display the IP on the welcome screen Hi all, I'm running CentOS 5.4 in a VMware guest, with the host connected to a DHCP enabled LAN When CentOS comes up, I would like to see the IP adress displayed on the welcome screen. This would save me the hassle of logging in the VM, getting the IP, and logging off before finally ssh'ing to the VM. ============= Is this to be shown on the GUI welcome screen or when you eg ssh in? -- /Sorin

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Debugging slow apache server?
by Roland RoLaNd 21 Apr '10

21 Apr '10

hello, i'm using an apache server to host 8 virtual hosts. even though this server is local.. 7 out of these 8 virtual hosts open extremly slow.. it takes around 10 seconds to open a page.. though the 8th (which is a completely different site) it opens fairly fast in around 1 or 2 seconds tops.. i tried tailing the error_log and i found nothing .. is there a way i could monitor wht each branch is doing and what's causing it to be so slow? any suggestion ? _________________________________________________________________ Hotmail: Trusted email with Microsoft’s powerful SPAM protection. https://signup.live.com/signup.aspx?id=60969

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