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System freezes completely under kernel 2.6.18-128.7.1.el5
by Olaf Mueller 25 Aug '09

25 Aug '09

Hello, is there a known problem with the new kernel for CentOS 5.3? Till today, my server works without any problems. But after updating to the new kernel 2.6.18-128.7.1.el5 the system freezes completely with no more access by keyboard or over network. The last message in /var/log/messages is 'Aug 25 14:07:41 weidenwinde kernel: hdg: dma_timer_expiry: dma status == 0x21'. I have not change my hardware, have not change configuration and till this new kernel the system was running without any problems. The harddisks are younger than a year. Is someone else this seeing? regards Olaf

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self signing certificates
by Jerry Geis 25 Aug '09

25 Aug '09

hi all, I have gone through the process of self signing certificates. Aside from the pop-ups about not trusted etc... everything appears to work. For "internal" applications what do people/places do? It would be nice to be seamless and have the "your not trusted" window pop-up. Yet this is not a public web site either. Just internal use. The server might be on the internet but people from the internet are not using it. I presume there is no way to by-pass the certificate signing process - even for internal apps. Is there? Thanks, Jerry

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Re: [CentOS] Samba "use sendfile" configuration option set do disabled as default - why?
by Per Qvindesland 25 Aug '09

25 Aug '09

Hi I am not saying that this is the solution but I am saying that it might be worth a short, even if it works for you I would still fine tune it depending on your configs, a lot of the time fine tuning samba is a pain and most of the time it actually comes down to crappy network performance I.E the nic seems to be working but it actually has a fault. Regards Per Qvindesland --- Original message follows --- SUBJECT: Re: [CentOS] Samba "use sendfile" configuration option set do disabled as default - why? FROM: Christoph Maser TO: "CentOS mailing list" DATE: 24-08-2009 13:27 Am Montag, den 24.08.2009, 13:24 +0200 schrieb Per Qvindesland: > socket options = TCP_NODELAY IPTOS_LOWDELAY SO_RCVBUF=65536 > SO_SNDBUF=65536 These options are often found if you search for samba tuning. Did someone actaully benchmark the results? Shouldn't tuning buffers manuall be oboslete nowadays? I somewhat doubt this is THE solution for slow sambas. Chris financial.com AG Munich head office/Hauptsitz München: Maria-Probst-Str. 19 | 80939 München | Germany Frankfurt branch office/Niederlassung Frankfurt: Messeturm | Friedrich-Ebert-Anlage 49 | 60327 Frankfurt | Germany Management board/Vorstand: Dr. Steffen Boehnert (CEO/Vorsitzender) | Dr. Alexis Eisenhofer | Dr. Yann Samson | Matthias Wiederwach Supervisory board/Aufsichtsrat: Dr. Dr. Ernst zur Linden (chairman/Vorsitzender) Register court/Handelsregister: Munich – HRB 128 972 | Sales tax ID number/St.Nr.: DE205 370 553 _______________________________________________ CentOS mailing list CentOS(a)centos.org http://lists.centos.org/mailman/listinfo/centos

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Access to xorg-x11-server-1.1.1-48.53.el5 (or later) SRPM ?
by James Pearson 25 Aug '09

25 Aug '09

Does anyone have access to the xorg-x11-server-1.1.1-48.53.el5 (or later) SRPM - which may be part of 5.4 beta? It's mentioned as having a fix for Bugzilla #448586 <https://bugzilla.redhat.com/show_bug.cgi?id=448586> I what to see if it fixes a X11 crash we're having. Thanks James Pearson

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Re: [CentOS] self signing certificates
by Les Bell 25 Aug '09

25 Aug '09

Keith Keller <kkeller(a)speakeasy.net> wrote: >> If you're going to go through that much trouble << Although I didn't quote the entire process here (copyright, time, etc.) it's only one command, the adding of one line to the Apache httpd.conf, (probably) scp'ing the files onto the server and providing a link on a page somewhere. Oh, and reloading Apache. 5 mins, tops. If you're a slow typist. But I must admit, I've not bothered to do it myself. One of these days. . . Best, --- Les Bell [http://www.lesbell.com.au] Tel: +61 2 9451 1144

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Re: [CentOS] self signing certificates
by Les Bell 25 Aug '09

25 Aug '09

Jerry Geis <geisj(a)pagestation.com> wrote: >> Was just trying to find a way so that users that "dont know" what this box is that is poping up wont even see the box. << Can't you install your own root certificate into the internal client browsers? The book "Network Security Hacks" (Andrew Lockhart, O'Reilly) gives a procedure for doing this (p. 112). You generate a .der file from the cacert.pem file, add a new mime type in the Apache config and then make the pem and der files available on your server. The users can now install the new root cert by just clicking on a link. (Sorry if this has already been covered - I wasn't paying attention to the earlier discussion). Best, --- Les Bell [http://www.lesbell.com.au] Tel: +61 2 9451 1144

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logwatch not mailing
by Ray Leventhal 24 Aug '09

24 Aug '09

Hi, # uname -a Linux obfuscated.example.com 2.6.18-128.4.1.el5 #1 SMP Tue Aug 4 20:23:34 EDT 2009 i686 i686 i386 GNU/Linux I noticed a few days ago that I'm not getting my logwatch emails to the root account any longer, and while I've definitely been applying updates from base, no other changes have happened on this box. I ran logwatch at the command line: logwatch --detail medium --mailto root(a)fqdn.example.com but still no email. As expected, /etc/cron.daily has the following entry: lrwxrwxrwx 1 root root 39 Jul 30 2008 0logwatch -> /usr/share/logwatch/scripts/logwatch.pl Where should I start looking to figure out why logwatch seems not to be doing its thing? Thanks in advance, -Ray

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httpd - mysql - paypal.com.tar - hacker
by Gregory P. Ennis 24 Aug '09

24 Aug '09

Everyone, This morning I received a notice from PayPal that one of our sites got hacked and was spoofing a PayPal web site. When I checked the the site, I was surprised to find they were correct. About 5 days a go we had a server that got hacked and somehow the file paypal.com.tar got uploaded to our server and then stored in a a subdirectory of /var/www/. I had previously started a mysqld server and planned on using it for web authorizations. I had not been able to work on it, but left it in place. I looked like the hacker downloaded his paypal spoof files into a subdirectory of /var/www/phpmyadmin. I am running 5.3 with all current updates. I do not have telnet or ftp active on this server, and have password authentication of sshd turned off. I have tried to obtain dialog with PayPal about this but they have not responded to my queries. If any of you have had some experience with this I would be interested in knowing how this may have happened. I have shutdown the mysqld server as well as removed access in httpd.conf of the /var/www/phpmyadmin directory in order to shutdown the spoofing site. If any of you have a leg up on this I would appreciate your help. Greg Ennis P.S. I found the following entry in my error_log of /var/log/httpd/ : [Sun Aug 16 04:26:19 2009] [info] Server built: Jul 14 2009 06:02:39 --00:21:14-- http://code.go.ro/paypal.com.tar Resolving code.go.ro... 81.196.20.134 Connecting to code.go.ro|81.196.20.134|:80... connected. HTTP request sent, awaiting response... 200 OK Length: 645120 (630K) [application/x-tar] Saving to: `paypal.com.tar' 0K .......... .......... .......... .......... .......... 7% 70.0K 8s 50K .......... .......... .......... .......... .......... 15% 265K 5s 100K .......... .......... .......... .......... .......... 23% 284K 3s 150K .......... .......... .......... .......... .......... 31% 1.81M 2s 200K .......... .......... .......... .......... .......... 39% 1.79M 2s 250K .......... .......... .......... .......... .......... 47% 323K 1s 300K .......... .......... .......... .......... .......... 55% 1.80M 1s 350K .......... .......... .......... .......... .......... 63% 1.76M 1s 400K .......... .......... .......... .......... .......... 71% 431K 1s 450K .......... .......... .......... .......... .......... 79% 1.77M 0s 500K .......... .......... .......... .......... .......... 87% 1.75M 0s 550K .......... .......... .......... .......... .......... 95% 1.82M 0s 600K .......... .......... .......... 100% 1.87M=1.6s 00:21:16 (405 KB/s) - `paypal.com.tar' saved [645120/645120] sh: line 0: cd: pma: Not a directory gzip: stdin: not in gzip format tar: Child returned status 1 tar: Error exit delayed from previous errors

10 24

virt-manager crashes Host during installation of guest
by Bernhard Gschaider 24 Aug '09

24 Aug '09

Hi! I have the following problem: I have a server (CentOS 5.3 x86_64) on which I want to install a virtual Xen-machine (CentOS 5.3 x86_64), I ssh from my workstation (Centos 5.3 x86_64 .... do you see the pattern ;) ) to that server and start the virt-manager. I create a new Guest (Paravirtualiuzed) and point it to the server with the installation files (CentOS 5.3, but I already said that). The manager creates the disk image an then opens the Graphical console for installation. Sometime around the point where the installation program wants me to select the keyboard the graphical console it freezes. The server is completely dead (no console, no disk activity, no ping, only a reset will "repair" it) My question: am I doing something stupid? But I figured "They're all the same system, this must work" I don't want to play around with it too much as the server is also our file-server and people start complaining. So any hint will be greatly appreciated (otherwise I'll have to setup another machine for the guests) Bernhard -- --------------------------------------------------------------------------- DI Bernhard F.W. Gschaider --------------------------------------------------------------------------- EMail: Bernhard.Gschaider(a)ice-sf.at WWW : www.ice-sf.at Jabber : bgschaid(a)jabber.org Tel: +43(3842)98282-42 Fax: +43(3842)98282-02 ---------------------------------------------------------------------------

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CentOS-announce Digest, Vol 54, Issue 10
by centos-announce-request＠centos.org 24 Aug '09

24 Aug '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-2009:1223 Important CentOS 4 x86_64 kernel Update (Johnny Hughes) 2. CESA-2009:1223 Important CentOS 4 i386 kernel Update (Johnny Hughes) ---------------------------------------------------------------------- Message: 1 Date: Mon, 24 Aug 2009 10:30:11 -0500 From: Johnny Hughes <johnny(a)centos.org> Subject: [CentOS-announce] CESA-2009:1223 Important CentOS 4 x86_64 kernel Update To: CentOS-Announce <centos-announce(a)centos.org> Message-ID: <4A92B203.1080509(a)centos.org> Content-Type: text/plain; charset="iso-8859-1" CentOS Errata and Security Advisory 2009:1223 https://rhn.redhat.com/errata/RHSA-2009-1223.html The following updated files have been uploaded and are currently syncing to the mirrors: x86_64: kernel-2.6.9-89.0.9.EL.x86_64.rpm kernel-devel-2.6.9-89.0.9.EL.x86_64.rpm kernel-doc-2.6.9-89.0.9.EL.noarch.rpm kernel-largesmp-2.6.9-89.0.9.EL.x86_64.rpm kernel-largesmp-devel-2.6.9-89.0.9.EL.x86_64.rpm kernel-smp-2.6.9-89.0.9.EL.x86_64.rpm kernel-smp-devel-2.6.9-89.0.9.EL.x86_64.rpm kernel-xenU-2.6.9-89.0.9.EL.x86_64.rpm kernel-xenU-devel-2.6.9-89.0.9.EL.x86_64.rpm src: kernel-2.6.9-89.0.9.EL.src.rpm

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