Discuss August 2012

discuss@lists.centos.org

190 participants
168 discussions

OT: Tool for monitoring traffic IP reception
by C. L. Martinez 31 Aug '12

31 Aug '12

Hi all, I am searching some lightweight tool to control when rsyslog didn't receive events from a specific host or group of hosts for x minutes/seconds. Only a simple tool to send an email when an alert is triggered, I don't need flat tools like zabbix or similars. Does anyone know any?

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CentOS 6 - Preferable snapshots via LVM, EXT4 or XFS
by aurfalien 30 Aug '12

30 Aug '12

Hi all, I read some where that due to UUID conflicts, EXT4 + LVM snapshots is still the way to go in Cent 6. I do love XFS but was wondering your thoughts and experiences. - aurf

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CentOS-announce Digest, Vol 90, Issue 18
by centos-announce-request＠centos.org 30 Aug '12

30 Aug '12

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bash job control and signals
by Theo Band 30 Aug '12

30 Aug '12

I want to suspend a script using a signal but that does not work as I want. I made an example script: $ cat script #!/bin/bash echo $$ gkrellm If run this script gkrellm starts up and I can use job control from the terminal to suspend the script (CTRL-Z) and resume it (fg or bg). If I suspend I can see that gkrellm freezes (that's why I choose gkrellm in this example): $ ./script 23632 --CTRL-Z-- [3]+ Stopped ./script $ fg ./script Next I want to do exactly the same but from another terminal using a signal: kill -SIGSTOP 23632 [3]+ Stopped ./script So the bash script is indeed suspended, but the gkrellm keeps running. I can of course signal SIGSTOP to gkrellm and then this gkrellm will suspend as well. I have however an application that suspends my script and I cannot change this application. I want all processes that are children also to become suspended. I tried to add a trap, but that did not work. Any idea how to make this work? Theo

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Re: [CentOS] KVM as a desktop
by James B. Byrne 29 Aug '12

29 Aug '12

On Wed, August 29, 2012 10:38, Theo Band wrote: >> >> > I'm not sure what your benefit is to not use your host but a VM > running > on it. > You could consider to use XDMP. You still need a (local) X server > (gdm), but then choose remote logon usign XDMCP. > On the virtual machine use gdmsetup to allow remote access or use this > link: > > http://www.centos.org/docs/5/html/5.1/Installation_Guide/s2-trouble-remotex… > Presently I build kvm hosts with a minimal install and add whatever packages are required to get kvm working and provide my customary administrative tools. The kvm guests get the user applications. I simply want to have a similar arrangement on my personal workstation so that my experiments do not become invisibly dependent upon something I have installed for my own use. Basically, I want to simply leave the host configuration alone once kvm is running and do my mucking about in a virtual machine. -- *** E-Mail is NOT a SECURE channel *** James B. Byrne mailto:ByrneJB@Harte-Lyne.ca Harte & Lyne Limited http://www.harte-lyne.ca 9 Brockley Drive vox: +1 905 561 1241 Hamilton, Ontario fax: +1 905 561 0757 Canada L8E 3C3

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Cut command behaviour - bug or feature
by Rajagopal Swaminathan 29 Aug '12

29 Aug '12

Greetings, I have a CSV file with three fields. eg. a1,b1,c1 a2,b2,c2 .... I wanted the output to be: b1,c1,a1 b2,c2,a2 .... the command cut -d, -f2,3,1 <file> returns a1,b1,c1 cut -d, -f2,3 <file> works as advertised. Is it specific to linux? In that case how do I go about swapping two columns? I do not think a gazzillion byte gui is required. The file size is about 43Megs. any ideas? -- Regards, Rajagopal

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CentOS-announce Digest, Vol 90, Issue 17
by centos-announce-request＠centos.org 29 Aug '12

29 Aug '12

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. CEBA-2012:1212 CentOS 6 lohit-telugu-fonts FASTTRACK Update (Johnny Hughes) 2. CEBA-2012:1213 CentOS 6 system-config-language FASTTRACK Update (Johnny Hughes) 3. CEBA-2012:1217 CentOS 5 logwatch FASTTRACK Update (Johnny Hughes) 4. CESA-2012:1210 Critical CentOS 5 firefox Update (Johnny Hughes) 5. CESA-2012:1211 Critical CentOS 5 thunderbird Update (Johnny Hughes) 6. CESA-2012:1210 Critical CentOS 6 firefox Update (Johnny Hughes) 7. CESA-2012:1211 Critical CentOS 6 thunderbird Update (Johnny Hughes) 8. CEBA-2012:C003 CentOS 6 MISSING Update (Johnny Hughes) ---------------------------------------------------------------------- Message: 1 Date: Wed, 29 Aug 2012 11:47:20 +0000 From: Johnny Hughes <johnny(a)centos.org> Subject: [CentOS-announce] CEBA-2012:1212 CentOS 6 lohit-telugu-fonts FASTTRACK Update To: centos-announce(a)centos.org Message-ID: <20120829114720.GA30749(a)chakra.karan.org> Content-Type: text/plain; charset=us-ascii CentOS Errata and Bugfix Advisory 2012:1212 Upstream details at : https://rhn.redhat.com/errata/RHBA-2012-1212.html The following updated files have been uploaded and are currently syncing to the mirrors: ( sha256sum Filename ) i386: 6eb54d5900f64ea70be28924a8ecc360e4e533315eb766b54d4cc53b349d4986 lohit-telugu-fonts-2.4.5-6.el6.noarch.rpm x86_64: 6eb54d5900f64ea70be28924a8ecc360e4e533315eb766b54d4cc53b349d4986 lohit-telugu-fonts-2.4.5-6.el6.noarch.rpm Source: f9b6b322cc8629bd10d13b173b6e2d27c216036ff00e2739a728023fcdaf4dd2 lohit-telugu-fonts-2.4.5-6.el6.src.rpm -- Johnny Hughes CentOS Project { http://www.centos.org/ } irc: hughesjr, #centos(a)irc.freenode.net ------------------------------ Message: 2 Date: Wed, 29 Aug 2012 11:47:42 +0000 From: Johnny Hughes <johnny(a)centos.org> Subject: [CentOS-announce] CEBA-2012:1213 CentOS 6 system-config-language FASTTRACK Update To: centos-announce(a)centos.org Message-ID: <20120829114742.GA30826(a)chakra.karan.org> Content-Type: text/plain; charset=us-ascii CentOS Errata and Bugfix Advisory 2012:1213 Upstream details at : https://rhn.redhat.com/errata/RHBA-2012-1213.html The following updated files have been uploaded and are currently syncing to the mirrors: ( sha256sum Filename ) i386: 1756ea23c8d280a600456caff3a8f444d34d277cf05f1a91d57574ef99124f98 system-config-language-1.3.4-6.el6.noarch.rpm x86_64: 1756ea23c8d280a600456caff3a8f444d34d277cf05f1a91d57574ef99124f98 system-config-language-1.3.4-6.el6.noarch.rpm Source: fc3e5246422608796b673db377607165ba54e9f81e312f35d27295194006a78f system-config-language-1.3.4-6.el6.src.rpm -- Johnny Hughes CentOS Project { http://www.centos.org/ } irc: hughesjr, #centos(a)irc.freenode.net ------------------------------ Message: 3 Date: Wed, 29 Aug 2012 12:32:24 +0000 From: Johnny Hughes <johnny(a)centos.org> Subject: [CentOS-announce] CEBA-2012:1217 CentOS 5 logwatch FASTTRACK Update To: centos-announce(a)centos.org Message-ID: <20120829123224.GA1183(a)chakra.karan.org> Content-Type: text/plain; charset=us-ascii CentOS Errata and Bugfix Advisory 2012:1217 Upstream details at : http://rhn.redhat.com/errata/RHBA-2012-1217.html The following updated files have been uploaded and are currently syncing to the mirrors: ( sha256sum Filename ) i386: 62c22ecc236b6b392fea73a170dddf408c587d22828542fcd196e1f417ce6145 logwatch-7.3-10.el5.noarch.rpm x86_64: 62c22ecc236b6b392fea73a170dddf408c587d22828542fcd196e1f417ce6145 logwatch-7.3-10.el5.noarch.rpm Source: dfba0766628b8a357d95222260389291a7c589015b822ce10ced61ec6a3ee1a3 logwatch-7.3-10.el5.src.rpm -- Johnny Hughes CentOS Project { http://www.centos.org/ } irc: hughesjr, #centos(a)irc.freenode.net ------------------------------ Message: 4 Date: Wed, 29 Aug 2012 12:43:30 +0000 From: Johnny Hughes <johnny(a)centos.org> Subject: [CentOS-announce] CESA-2012:1210 Critical CentOS 5 firefox Update To: centos-announce(a)centos.org Message-ID: <20120829124330.GA1516(a)chakra.karan.org> Content-Type: text/plain; charset=us-ascii CentOS Errata and Security Advisory 2012:1210 Critical Upstream details at : https://rhn.redhat.com/errata/RHSA-2012-1210.html The following updated files have been uploaded and are currently syncing to the mirrors: ( sha256sum Filename ) i386: 0b2bf2082dae2c75a0af9b58b48c44f5b14527e90e6306cd6cd57bd02c9cc644 firefox-10.0.7-1.el5.centos.i386.rpm a5310d8615fd2c9f16d522d868d73fb4720c543adc782ea794ffcfbafa8212a5 xulrunner-10.0.7-2.el5_8.i386.rpm f737bfad4025412bd47a561dc461bf0445b94edcf47a5c20b9f9b425fd5eadd0 xulrunner-devel-10.0.7-2.el5_8.i386.rpm x86_64: 0b2bf2082dae2c75a0af9b58b48c44f5b14527e90e6306cd6cd57bd02c9cc644 firefox-10.0.7-1.el5.centos.i386.rpm 41c4a1926e9735d64fcea5257a8392673a6b23ee5da9dd7cb94e30503cb620aa firefox-10.0.7-1.el5.centos.x86_64.rpm a5310d8615fd2c9f16d522d868d73fb4720c543adc782ea794ffcfbafa8212a5 xulrunner-10.0.7-2.el5_8.i386.rpm 25d55a59e7661346e7e72bef9b1a4eacb401ac14a42ba5d0f251aa73e24c6775 xulrunner-10.0.7-2.el5_8.x86_64.rpm f737bfad4025412bd47a561dc461bf0445b94edcf47a5c20b9f9b425fd5eadd0 xulrunner-devel-10.0.7-2.el5_8.i386.rpm 1119abfac4455d147bdcd4bf7a61561736037bf9d634880770565dd945b72ac7 xulrunner-devel-10.0.7-2.el5_8.x86_64.rpm Source: 8759f974c9001e2ab894c12d89cc4cee261b4de9fa6f474b272ef51f6947ddca firefox-10.0.7-1.el5.centos.src.rpm 423007e1b634ca37cef2062c28805ee7945e68b2a817209f85c28c6bf5479abd xulrunner-10.0.7-2.el5_8.src.rpm -- Johnny Hughes CentOS Project { http://www.centos.org/ } irc: hughesjr, #centos(a)irc.freenode.net ------------------------------ Message: 5 Date: Wed, 29 Aug 2012 12:53:01 +0000 From: Johnny Hughes <johnny(a)centos.org> Subject: [CentOS-announce] CESA-2012:1211 Critical CentOS 5 thunderbird Update To: centos-announce(a)centos.org Message-ID: <20120829125301.GA1633(a)chakra.karan.org> Content-Type: text/plain; charset=us-ascii CentOS Errata and Security Advisory 2012:1211 Critical Upstream details at : http://rhn.redhat.com/errata/RHSA-2012-1211.html The following updated files have been uploaded and are currently syncing to the mirrors: ( sha256sum Filename ) i386: 14371bf3252feb7497859078cf512cfedbe7474ee982cf4c8d06648ef588ae32 thunderbird-10.0.7-1.el5.centos.i386.rpm x86_64: fff3a57ff2c431e36f64812fa0db1c6f0c478086774be39dfbfbb48bc2e4a74c thunderbird-10.0.7-1.el5.centos.x86_64.rpm Source: bba92d49240f8e38c98bc159c89f14e182011c99d620d7de750d41beed2d6e3a thunderbird-10.0.7-1.el5.centos.src.rpm -- Johnny Hughes CentOS Project { http://www.centos.org/ } irc: hughesjr, #centos(a)irc.freenode.net ------------------------------ Message: 6 Date: Wed, 29 Aug 2012 13:37:18 +0000 From: Johnny Hughes <johnny(a)centos.org> Subject: [CentOS-announce] CESA-2012:1210 Critical CentOS 6 firefox Update To: centos-announce(a)centos.org Message-ID: <20120829133718.GA4601(a)chakra.karan.org> Content-Type: text/plain; charset=us-ascii CentOS Errata and Security Advisory 2012:1210 Critical Upstream details at : https://rhn.redhat.com/errata/RHSA-2012-1210.html The following updated files have been uploaded and are currently syncing to the mirrors: ( sha256sum Filename ) i386: 3da86a40859ded51736236b0af5656e748c0f583a707c196b69e16d22c46ce37 firefox-10.0.7-1.el6.centos.i686.rpm aa80a0a7916ec0020135837f9f77ea6d9f5b247e29cb3057d00eeae3808a2e64 xulrunner-10.0.7-1.el6.centos.i686.rpm 2117cfd41fb328b0c2c0125a258c43db3bf64c0181c1397694ba4dc15d42dd3b xulrunner-devel-10.0.7-1.el6.centos.i686.rpm x86_64: 3da86a40859ded51736236b0af5656e748c0f583a707c196b69e16d22c46ce37 firefox-10.0.7-1.el6.centos.i686.rpm fc7a7d567e45859ba38ff9281513b7330e07472b05bc33e5433f87473170cbf5 firefox-10.0.7-1.el6.centos.x86_64.rpm aa80a0a7916ec0020135837f9f77ea6d9f5b247e29cb3057d00eeae3808a2e64 xulrunner-10.0.7-1.el6.centos.i686.rpm 3574143e41beeba0cfd7dd58e405336bb6ddef33fc7af8a69a1d59431b002fed xulrunner-10.0.7-1.el6.centos.x86_64.rpm 2117cfd41fb328b0c2c0125a258c43db3bf64c0181c1397694ba4dc15d42dd3b xulrunner-devel-10.0.7-1.el6.centos.i686.rpm d17762f434679e917ba8166f8ab951ab859b1a1b087b8eac3141455201f32d0b xulrunner-devel-10.0.7-1.el6.centos.x86_64.rpm Source: 7a32ff968ac9fb57e9db6218087f0c6868a971e13b9f84e58ce371508a79019c firefox-10.0.7-1.el6.centos.src.rpm 6d86b67474be39e8a2e1e3833ee35fc85a471a093b5f11f3f84088982973e9fb xulrunner-10.0.7-1.el6.centos.src.rpm -- Johnny Hughes CentOS Project { http://www.centos.org/ } irc: hughesjr, #centos(a)irc.freenode.net ------------------------------ Message: 7 Date: Wed, 29 Aug 2012 13:38:47 +0000 From: Johnny Hughes <johnny(a)centos.org> Subject: [CentOS-announce] CESA-2012:1211 Critical CentOS 6 thunderbird Update To: centos-announce(a)centos.org Message-ID: <20120829133847.GA4696(a)chakra.karan.org> Content-Type: text/plain; charset=us-ascii CentOS Errata and Security Advisory 2012:1211 Critical Upstream details at : http://rhn.redhat.com/errata/RHSA-2012-1211.html The following updated files have been uploaded and are currently syncing to the mirrors: ( sha256sum Filename ) i386: 89bffd60cf1b8f91e9841c0f192c1f717b9f45de1fcc905ff9fb8f56def982cc thunderbird-10.0.7-1.el6.centos.i686.rpm x86_64: 77ff97ece4414f8ddbae8f04a5cbf44b5afa854f9a84305dbd90e0bc183588a2 thunderbird-10.0.7-1.el6.centos.x86_64.rpm Source: 2fcaac7e8df0bc723f7849692a3f848c305f38323d72abcfe7b123180ffb4e29 thunderbird-10.0.7-1.el6.centos.src.rpm -- Johnny Hughes CentOS Project { http://www.centos.org/ } irc: hughesjr, #centos(a)irc.freenode.net ------------------------------ Message: 8 Date: Wed, 29 Aug 2012 13:42:06 +0000 From: Johnny Hughes <johnny(a)centos.org> Subject: [CentOS-announce] CEBA-2012:C003 CentOS 6 MISSING Update To: centos-announce(a)centos.org Message-ID: <20120829134206.GA4806(a)chakra.karan.org> Content-Type: text/plain; charset=us-ascii CentOS Errata and Bugfix Advisory 2012:C003 Upstream details at : http://bugs.centos.org/view.php?id=5923 The following updated files have been uploaded and are currently syncing to the mirrors: ( sha256sum Filename ) i386: ed61e0f536dcd7f2a765c7e0d6b912b73df35d293b6ee5e8eaac59e22f10680b device-mapper-persistent-data-0.1.4-1.el6.i686.rpm c26b2775f1db518529f54e2cd8774139783bbf7863fa827ed4abfe9e5b076c82 ocaml-libvirt-0.6.1.0-6.4.el6.i686.rpm 5b26864b5eb3ade22b9585e0601c346933b128eb55d813aa36317b3c5d9d02e8 ocaml-libvirt-devel-0.6.1.0-6.4.el6.i686.rpm 0986271883d4ad2914264dd71a99397deed0a44621f75a23561b02eb7f3ac8d7 upstart-0.6.5-12.el6.i686.rpm e4beee5b197ca43e93397c6ce9a731fca383c1058555b0edaa49742906f1c3e6 virt-top-1.0.4-3.13.el6.i686.rpm x86_64: caba761be1d119c67da6917c7fceb3b231f89bd44ad1d61398de713964362c5f mpitests-mvapich2-3.2-5.el6.x86_64.rpm abd8d1ca1e423387d1e5b688cdc403aa09a43d6347d59da41bfff27a47127399 mpitests-mvapich2-psm-3.2-5.el6.x86_64.rpm 7f39d920e19a72ca1dd6892c7a1e9fc334dc0dce8d0b60d1474706d62a2cb261 mpitests-mvapich-3.2-5.el6.x86_64.rpm b48e260bff3b211bd0e51c345a7671a7380df9afa0f366e9be611d6b603f5b25 mpitests-mvapich-psm-3.2-5.el6.x86_64.rpm 223c631e12c78735dcc8810d3d3b6b8fb634120a892ced5b716118b863678ce2 mpitests-openmpi-3.2-5.el6.x86_64.rpm c26b2775f1db518529f54e2cd8774139783bbf7863fa827ed4abfe9e5b076c82 ocaml-libvirt-0.6.1.0-6.4.el6.i686.rpm 5b26864b5eb3ade22b9585e0601c346933b128eb55d813aa36317b3c5d9d02e8 ocaml-libvirt-devel-0.6.1.0-6.4.el6.i686.rpm Source: f5402980d53dbb15aac97b44377bd3c8453622810e106ad8f3530c204dcd2c69 device-mapper-persistent-data-0.1.4-1.el6.src.rpm c9e22cf381d0baa352ce20a04feaed746f5cc79b67fa326ca9755225df389854 mpitests-3.2-5.el6.src.rpm 8f39affab0eadf3d282f48b3d90f98f574e7d50ac3999d11ad1a2a6d1a4545db ocaml-libvirt-0.6.1.0-6.4.el6.src.rpm e81708d12b5f3caf0a33a822b0a9063f224754342d84ddfd9a143047b834277b upstart-0.6.5-12.el6.src.rpm 12aeeed44ef5aba5123a75b05891e4f2b384577ee4e6cb5b169fb71e294a2b22 virt-top-1.0.4-3.13.el6.src.rpm -- Johnny Hughes CentOS Project { http://www.centos.org/ } irc: hughesjr, #centos(a)irc.freenode.net ------------------------------ _______________________________________________ CentOS-announce mailing list CentOS-announce(a)centos.org http://lists.centos.org/mailman/listinfo/centos-announce End of CentOS-announce Digest, Vol 90, Issue 17 ***********************************************

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KVM as a desktop
by James B. Byrne 29 Aug '12

29 Aug '12

I am nearing the end of a project that moved our disparate services and hosts onto kvm virtualized servers. What I am now contemplating is setting up my desktop as a virtual host and using one of the guests as my primary workstation. However, I am not sure how this would work in practice. I am accustomed to working with virtual instances via ssh (a terminal window) and with my desktop system in a Gnome window manager. Is there a reference somewhere that outlines the mechanics of logging into a virtual guest's graphical desktop directly from the physical console of the kvm host system? -- *** E-Mail is NOT a SECURE channel *** James B. Byrne mailto:ByrneJB@Harte-Lyne.ca Harte & Lyne Limited http://www.harte-lyne.ca 9 Brockley Drive vox: +1 905 561 1241 Hamilton, Ontario fax: +1 905 561 0757 Canada L8E 3C3

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Re: [CentOS] KVM as a desktop
by J.Witvliet＠mindef.nl 29 Aug '12

29 Aug '12

-----Original Message----- From: centos-bounces(a)centos.org [mailto:centos-bounces@centos.org] On Behalf Of Les Mikesell Sent: Tuesday, August 28, 2012 5:12 PM To: CentOS mailing list Subject: Re: [CentOS] KVM as a desktop On Tue, Aug 28, 2012 at 9:23 AM, James B. Byrne <byrnejb(a)harte-lyne.ca> wrote: > I am nearing the end of a project that moved our disparate services > and hosts onto kvm virtualized servers. What I am now contemplating > is setting up my desktop as a virtual host and using one of the guests > as my primary workstation. > > However, I am not sure how this would work in practice. I am > accustomed to working with virtual instances via ssh (a terminal > window) and with my desktop system in a Gnome window manager. Is > there a reference somewhere that outlines the mechanics of logging > into a virtual guest's graphical desktop directly from the physical > console of the kvm host system? I like to use freenx to host the desktop and the NX client to display it. That should work regardless of whether the desktop is a VM or not and regardless of the OS or location of the display - and it wouldn't surprise me if it performs better than whatever the built-in KVM mechanism uses. Even if you normally work locally, you may find it handy to be able to pick up the display from elsewhere with everything still running and have good performance. -----Original Message----- Not sure if freeNX is the best way to go. How about x2go: http://www.x2go.org/ Or thinlink from http://www.cendio.com/ Hw ______________________________________________________________________ Dit bericht kan informatie bevatten die niet voor u is bestemd. Indien u niet de geadresseerde bent of dit bericht abusievelijk aan u is toegezonden, wordt u verzocht dat aan de afzender te melden en het bericht te verwijderen. De Staat aanvaardt geen aansprakelijkheid voor schade, van welke aard ook, die verband houdt met risico's verbonden aan het elektronisch verzenden van berichten. This message may contain information that is not intended for you. If you are not the addressee or if this message was sent to you by mistake, you are requested to inform the sender and delete the message. The State accepts no liability for damage of any kind resulting from the risks inherent in the electronic transmission of messages.

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updatedb taking too long
by Tim Dunphy 29 Aug '12

29 Aug '12

Hi list For some reason mlocate is taking a long time when I run the updatedb command. Have a look! [root@beta:~] #time updatedb real 19m48.729s user 0m0.400s sys 0m2.728s It's not a big volume by any means [root@beta:~] #df -h Filesystem Size Used Avail Use% Mounted on /dev/xvda1 75G 9.1G 63G 13% / So I'm wondering what could be causing this command to take so long. I'm running centos 5.8 in a xen vm. I was hoping I could get some advice that would help me troubleshoot this problem. Thanks! Tim -- GPG me!! gpg --keyserver pool.sks-keyservers.net --recv-keys F186197B

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Discuss August 2012