Discuss October 2012

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162 participants
168 discussions

Tomcat Linux/Windows Performance Question
by Ashkan Rahmani 28 Oct '12

28 Oct '12

Hi, Now I have a windows 2008 server and a Tomcat 6.x on it. Our application has many many parts and it's very big. Actually we are not happy with tomcat performance, (We are working very hard on developing that software and improving performance) . We want to improve application performance (working on it now) and tomcat (by tuning and we are doing now) and finally OS, for this we want to remove (damn) windows and come back to centos. Is here anyone have some experience with tomcat on windows and Linux? which has better performance? -- Best Regards, Ashkan R

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SSSD configuration
by Tomas Brandysky 27 Oct '12

27 Oct '12

Hello, we're upgrading from Centos 5.8 to Centos 6.3 and have realized few things have changed in the system. We're using LDAP authentication (nss_ldap package) on our Centos 5.8 servers and have different PAM ldap configuration files configured to be used for specific PAM services. Here is the example of our setup: /etc/pam.d/service1: auth sufficient pam_ldap.so config=/etc/ldap_service1.conf /etc/pam.d/service2: auth sufficient pam_ldap.so config=/etc/ldap_service2.conf Thus we can use specific LDAP filters for various different services as not all users having access to one service also have access to other services on the same server. Now we're facing the problem to manage the same functionality with System Security Services Daemon (SSSD) which was newly presented with RHEL 6. We didn't find out so far how to specify custom sssd configuration file (or specific part of the configuration section/domain) in PAM service configuration. According to documentation only these options can be specified when using pam_sss module: [forward_pass] [use_first_pass] [use_authtok]. None of them can be used to make a difference in a ldap filter to be used. Is there a way how to configure specific search filters depending on PAM service ? Thank you for any suggestion Regards Tomas Brandysky

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CentOS6 LDAP Authentication.
by Ezequiel Larrarte 27 Oct '12

27 Oct '12

Hi! I can make ldap authentication to work using LDAPS in CentOS 6. On CentOS 5, I just simply set tls_cheekpeer no to /etc/ldap.conf and it works! I tried all /etc/nslcd.conf /etc/pam_ldap.conf /etc/openldap/ldap.conf It 's really confusing on CentOS 6. Why so many files???? CentOS 5 LDAPTLS_REQCERT=never ldapsearch -x -H ldaps://xxxx (works!) CentOS 6 LDAPTLS_REQCERT=never ldapsearch -x -H ldaps://xxxx (Can 't connect to LDAP Server ...) I 've been reading that there is a bug but I 'm not understanding if there is a workaround for this ... Any ideas???? -- --------------------------------------------------------- Ezequiel Larrarte. " ... God Always Takes The Simplest Way! ... "

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Permission "nfsnobody" and mounting an nfs share in a datacenter
by Jobst Schmalenbach 27 Oct '12

27 Oct '12

Hi A datacenter I use provides mountable nfs shares that are provided through a subnet, the only person having access to the nfs share is me. If I do this: mount -t nfs 192.168.53.21:/USERNAME /mnt/share/ then I get the share: [root@hostname /mnt/share] #>ls -la total 12 drwxrwxrwx 2 nfsnobody nfsnobody 4096 Oct 9 18:04 . drwxr-xr-x 7 root root 4096 Oct 9 17:55 .. -rw-r--r-- 1 nfsnobody nfsnobody 0 Oct 9 18:01 test I want to use this as a snapshot backup drive, so I need to have the permission on the backup the same as on the source, e.g. rsync -avH /bin /mnt/share Off course this fails: rsync: chown "/mnt/share/bin/.zcat.WDISFU" failed: Operation not permitted (1) How can I make this possible? Jobst -- The reason you cannot think about eternity is because the intellect which is doing the thinking is an instrument of time and nothing else. | |0| | Jobst Schmalenbach, jobst(a)barrett.com.au, General Manager | | |0| Barrett Consulting Group P/L & The Meditation Room P/L |0|0|0| +61 3 9532 7677, POBox 277, Caulfield South, 3162, Australia

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CentOS-announce Digest, Vol 92, Issue 19
by centos-announce-request＠centos.org 27 Oct '12

27 Oct '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. CESA-2012:1407 Critical CentOS 5 firefox Update (Johnny Hughes) 2. CESA-2012:1407 Critical CentOS 6 firefox Update (Johnny Hughes) ---------------------------------------------------------------------- Message: 1 Date: Sat, 27 Oct 2012 02:12:20 +0000 From: Johnny Hughes <johnny(a)centos.org> Subject: [CentOS-announce] CESA-2012:1407 Critical CentOS 5 firefox Update To: centos-announce(a)centos.org Message-ID: <20121027021220.GA20194(a)chakra.karan.org> Content-Type: text/plain; charset=us-ascii CentOS Errata and Security Advisory 2012:1407 Critical Upstream details at : https://rhn.redhat.com/errata/RHSA-2012-1407.html The following updated files have been uploaded and are currently syncing to the mirrors: ( sha256sum Filename ) i386: 72895342418334b24ba109554669900b2f2ec1e3815cafe5f35b3a4cd15b8245 firefox-10.0.10-1.el5.centos.i386.rpm 8a4b0d478a7772ead69ad21090185a15c3eab4b797dc42cc6ad5b6e588a9bbd5 xulrunner-10.0.10-1.el5_8.i386.rpm f930e8fb9019926eeb2a318cef41e45e6d2a77b82621a7188a02a4e0fb2d21ed xulrunner-devel-10.0.10-1.el5_8.i386.rpm x86_64: 72895342418334b24ba109554669900b2f2ec1e3815cafe5f35b3a4cd15b8245 firefox-10.0.10-1.el5.centos.i386.rpm f67786930970a5b091cc886b18cb8bb8ee90b5d1a911141d8dd4ead99771248d firefox-10.0.10-1.el5.centos.x86_64.rpm 8a4b0d478a7772ead69ad21090185a15c3eab4b797dc42cc6ad5b6e588a9bbd5 xulrunner-10.0.10-1.el5_8.i386.rpm 8b4f3b899d7f558231350a402a80ebec91afec2ec989897eb9e2cd9f2e068912 xulrunner-10.0.10-1.el5_8.x86_64.rpm f930e8fb9019926eeb2a318cef41e45e6d2a77b82621a7188a02a4e0fb2d21ed xulrunner-devel-10.0.10-1.el5_8.i386.rpm 9284c592791c0885881c2e704eeb6d5a54040fa82568605c95683dfbb1948940 xulrunner-devel-10.0.10-1.el5_8.x86_64.rpm Source: bf155b83e3e322a5dc5b850ca3aa4f43f6443ace31e38d1fa24b24479c1a1af9 firefox-10.0.10-1.el5.centos.src.rpm 6cfad3f390d35e19a2e584052e1df8d6b9d792bc2ea376b2d2fbe3584fc9509d xulrunner-10.0.10-1.el5_8.src.rpm -- Johnny Hughes CentOS Project { http://www.centos.org/ } irc: hughesjr, #centos(a)irc.freenode.net ------------------------------ Message: 2 Date: Sat, 27 Oct 2012 04:43:22 +0000 From: Johnny Hughes <johnny(a)centos.org> Subject: [CentOS-announce] CESA-2012:1407 Critical CentOS 6 firefox Update To: centos-announce(a)centos.org Message-ID: <20121027044322.GA27593(a)chakra.karan.org> Content-Type: text/plain; charset=us-ascii CentOS Errata and Security Advisory 2012:1407 Critical Upstream details at : https://rhn.redhat.com/errata/RHSA-2012-1407.html The following updated files have been uploaded and are currently syncing to the mirrors: ( sha256sum Filename ) i386: a8e41c9ef6fb785688196721fa8e9a46d6799a0a93236c7d93f9a1935568792c firefox-10.0.10-1.el6.centos.i686.rpm e57f929a8a042e57659b2a47f88b377f28d50a61c1ee0c55d685ddfc23f6b6d7 xulrunner-10.0.10-1.el6.centos.i686.rpm 65e922618c64117049421d5eacd6c5b7e507795f71192e0b39ece5129ad8d5b9 xulrunner-devel-10.0.10-1.el6.centos.i686.rpm x86_64: a8e41c9ef6fb785688196721fa8e9a46d6799a0a93236c7d93f9a1935568792c firefox-10.0.10-1.el6.centos.i686.rpm 0e3c396caebdee19ebc157c849676f8baa9367e58d5ac6257ca031d022851bd9 firefox-10.0.10-1.el6.centos.x86_64.rpm e57f929a8a042e57659b2a47f88b377f28d50a61c1ee0c55d685ddfc23f6b6d7 xulrunner-10.0.10-1.el6.centos.i686.rpm 36eafb32c1fd090e022a9d07c8123ea867368ad6f8ae202285f9b7256c2816c1 xulrunner-10.0.10-1.el6.centos.x86_64.rpm 65e922618c64117049421d5eacd6c5b7e507795f71192e0b39ece5129ad8d5b9 xulrunner-devel-10.0.10-1.el6.centos.i686.rpm 25ac125059654f35dd80b7cba6d9487a7814ffb8c95e39f7eeba901aa3c46d84 xulrunner-devel-10.0.10-1.el6.centos.x86_64.rpm Source: 9d75078914cd286c15e200011dbae86f3073c8c6de4a9cb1394cc3ca8f121926 firefox-10.0.10-1.el6.centos.src.rpm f134ca4c997e765ddc12160706b00297fbf8922d89d7f8ac6a812c30c810f7de xulrunner-10.0.10-1.el6.centos.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 92, Issue 19 ***********************************************

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Assign external esata drive to KVM
by Kanwar Ranbir Sandhu 27 Oct '12

27 Oct '12

Hello Everyone, I have a CentOS 6.3 host running a few KVMs. One of them is a CentOS 6.3 KVM that I want to use for making backups with BackupPC. What I'm having a problem with is assigning the KVM an external drive. I used to run BackupPC on an Ubuntu box. The backups went to an external eSATA 1.5TB, ext4 format, single partition drive (regular 3.5" in an enclosure). I want to now attach that same external drive to my KVM host, and pass it up to the KVM running BackupPC. I added the entire drive as a second storage disk to the KVM. I used the disk's label (/dev/disk/by-label/backups) so that I wouldn't have to worry about the device name changing down the road. When I booted up the KVM and listed the disks, I only saw "/dev/vdb". I was also expecting to see "/dev/vdb1". I ran fdisk on it only to see the partition table wasn't detected. The drive itself is OK - I can mount it successfully on the KVM host. Here's the fdisk output: Device contains neither a valid DOS partition table, nor Sun, SGI or OSF disklabel Building a new DOS disklabel with disk identifier 0xd6912a1b. Changes will remain in memory only, until you decide to write them. After that, of course, the previous content won't be recoverable. Warning: invalid flag 0x0000 of partition table 4 will be corrected by w(rite) WARNING: DOS-compatible mode is deprecated. It's strongly recommended to switch off the mode (command 'c') and change display units to sectors (command 'u'). Command (m for help): p Disk /dev/vdb: 1500.3 GB, 1500300861440 bytes 16 heads, 63 sectors/track, 2907018 cylinders Units = cylinders of 1008 * 512 = 516096 bytes Sector size (logical/physical): 512 bytes / 512 bytes I/O size (minimum/optimal): 512 bytes / 512 bytes Disk identifier: 0xd6912a1b Device Boot Start End Blocks Id System Command (m for help): quit So...how do I properly assign this eSATA disk to the KVM? FYI: the enclosure can use USB as well. Thanks, Ranbir -- Kanwar Ranbir Sandhu Linux 3.5.4-2.fc17.x86_64 x86_64 GNU/Linux 12:20:20 up 12 days, 37 min, 3 users, load average: 0.09, 0.09, 0.12

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elrepo kernel on CentOS 5.8
by Jerry Geis 27 Oct '12

27 Oct '12

I have installed kernel-ml-2.6.39-4.2.el5.elrepo.i686.rpm on a computer. and also kernel-ml-devel-2.6.39-4.2.el5.elrepo.i686.rpm with base CentOS 5.8 i686 I also installed kmod-alsa-1.0.25-3.el5.elrepo.i686.rpm All "seems" fine - sound even works - in the fact that I hear it. However, when using alsamixer it appears that I can move the volume up/down and even hit MUTE but it has no affect. Hitting MUTE I still get sound out. Moving the volume up/down has no effect. What else might I be needing to have "control" of the volume? Thanks, Jerry

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Re: [CentOS] Completely automatic yum updating on Centos 6
by Emmanuel Noobadmin 26 Oct '12

26 Oct '12

On 10/26/12, Sorin Srbu <sorin.srbu(a)orgfarm.uu.se> wrote: > -----Original Message----- > From: centos-bounces(a)centos.org [mailto:centos-bounces@centos.org] On Behalf > > Of Frank Cox > Sent: den 26 oktober 2012 00:19 > To: centos(a)centos.org > Subject: Re: [CentOS] Completely automatic yum updating on Centos 6 >> >>So if I plan to log into it remotely, I'll have to have it report its >> current >>address to me on occasion. >> >>Which probably wouldn't be a bad thing, anyway. > > How would one do that? > > Using an applet from eg Noip.com or something bashish that mails you the > info? Personally, for systems on dynamic IPs that I need to be able to log into, I have cronjobs that just hit a specific web page on one of my domains and a simple script records the IP.

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Completely automatic yum updating on Centos 6
by Frank Cox 26 Oct '12

26 Oct '12

I am about to set up a computer with Centos 6 that I'll probably never see again. I don't want to give out the root password, but I would like to have it automatically and transparently update itself. What is the best way to do this? I have been looking at webpages about yum-cron and yum-updatesd but nothing directly addresses Centos 6 and it appears that at least one of those two methods is now obsolete. -- MELVILLE THEATRE ~ Real D 3D Digital Cinema ~ www.melvilletheatre.com www.creekfm.com - FIFTY THOUSAND WATTS of POW WOW POWER!

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CentOS-announce Digest, Vol 92, Issue 18
by centos-announce-request＠centos.org 26 Oct '12

26 Oct '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-2012:1405 CentOS 6 openmotif Update (Johnny Hughes) 2. CEBA-2012:1406 CentOS 5 OpenIPMI Update (Johnny Hughes) ---------------------------------------------------------------------- Message: 1 Date: Fri, 26 Oct 2012 13:17:41 +0000 From: Johnny Hughes <johnny(a)centos.org> Subject: [CentOS-announce] CEBA-2012:1405 CentOS 6 openmotif Update To: centos-announce(a)centos.org Message-ID: <20121026131741.GA13489(a)chakra.karan.org> Content-Type: text/plain; charset=us-ascii CentOS Errata and Bugfix Advisory 2012:1405 Upstream details at : https://rhn.redhat.com/errata/RHBA-2012-1405.html The following updated files have been uploaded and are currently syncing to the mirrors: ( sha256sum Filename ) i386: f261f53192577f1045aa82e13a11f3900f0fbbc94f1b07a2f40aee2c8016dfec openmotif-2.3.3-5.el6_3.i686.rpm 9d4f7c5135d686206896ff10737f18705c3b5eb6f542917220bc4a888e7b63a2 openmotif-devel-2.3.3-5.el6_3.i686.rpm x86_64: f261f53192577f1045aa82e13a11f3900f0fbbc94f1b07a2f40aee2c8016dfec openmotif-2.3.3-5.el6_3.i686.rpm 5e4baeed410fdbb1f092ffb7ff4a0c0d002c0a1ca09e1bc8388830a149e92aeb openmotif-2.3.3-5.el6_3.x86_64.rpm 9d4f7c5135d686206896ff10737f18705c3b5eb6f542917220bc4a888e7b63a2 openmotif-devel-2.3.3-5.el6_3.i686.rpm 43ff18a31720650f87fc8a7fe50f0040527ba457fba35e8696eb11a39210104e openmotif-devel-2.3.3-5.el6_3.x86_64.rpm Source: b9e8d9ffa512ed7cb3fcb4f3f38a105bd2f53c41faa5a7cf47b0c4be19d07494 openmotif-2.3.3-5.el6_3.src.rpm -- Johnny Hughes CentOS Project { http://www.centos.org/ } irc: hughesjr, #centos(a)irc.freenode.net ------------------------------ Message: 2 Date: Fri, 26 Oct 2012 13:20:01 +0000 From: Johnny Hughes <johnny(a)centos.org> Subject: [CentOS-announce] CEBA-2012:1406 CentOS 5 OpenIPMI Update To: centos-announce(a)centos.org Message-ID: <20121026132001.GA13632(a)chakra.karan.org> Content-Type: text/plain; charset=us-ascii CentOS Errata and Bugfix Advisory 2012:1406 Upstream details at : https://rhn.redhat.com/errata/RHBA-2012-1406.html The following updated files have been uploaded and are currently syncing to the mirrors: ( sha256sum Filename ) i386: 87377122e21131d17afd7bb396e9fb111c8fa671ef7f9344a53385136ca42e96 OpenIPMI-2.0.16-13.el5_8.i386.rpm 28455971ffa3fe1da71157c98a395749b5e9423cb84e41e6ce29443849efeffc OpenIPMI-devel-2.0.16-13.el5_8.i386.rpm c3a38ca2fc252585a1eedc27d3a5b4451d422e0519c92cc8d895fc29c54710b3 OpenIPMI-gui-2.0.16-13.el5_8.i386.rpm da9cb46f1d049b85a23ac78d2aaf8f613671654f078c2b1dab7ec26458d10d73 OpenIPMI-libs-2.0.16-13.el5_8.i386.rpm cf1139adbcf53b3459b868b609e85d58de57d7862fb7df22cc853d349029c02c OpenIPMI-perl-2.0.16-13.el5_8.i386.rpm c679ead28de19e3f6754c700d6cbe192e066189bd3ece31966f695b362637c9e OpenIPMI-python-2.0.16-13.el5_8.i386.rpm 698c22337f08fee241d4fa44e86a574b51230c3c802455ce3fee3d1830a42e67 OpenIPMI-tools-2.0.16-13.el5_8.i386.rpm x86_64: 3be25eaaa34c9b065c78436b4cb7e41e3e109eb5c3473d437e3e176316b984a1 OpenIPMI-2.0.16-13.el5_8.x86_64.rpm 28455971ffa3fe1da71157c98a395749b5e9423cb84e41e6ce29443849efeffc OpenIPMI-devel-2.0.16-13.el5_8.i386.rpm a5411f3d455d0107ba85d0c83a4b43ea95b945f3c9484691f0d6b31a1e15738f OpenIPMI-devel-2.0.16-13.el5_8.x86_64.rpm 437627589479ca5dedf223736875bc081bd910eb66c302c4e34f4dd55fdf5235 OpenIPMI-gui-2.0.16-13.el5_8.x86_64.rpm da9cb46f1d049b85a23ac78d2aaf8f613671654f078c2b1dab7ec26458d10d73 OpenIPMI-libs-2.0.16-13.el5_8.i386.rpm 9aa1cf8fbbd2f76405925a9272ccdb853a47c2b121ce5e8e92270fd441c6f662 OpenIPMI-libs-2.0.16-13.el5_8.x86_64.rpm 7046d0388010bdf7b08cf3c4212eae1e853a1e70bd0d9d9b49be75f8ab8b71c2 OpenIPMI-perl-2.0.16-13.el5_8.x86_64.rpm 69546f96da947197deaad035a58c40677f39a07f703f9df13429cab40980805d OpenIPMI-python-2.0.16-13.el5_8.x86_64.rpm 0f71bfa4010152c6e5c2cda9d38e00bac3617e46cfee62414fb8f66fcb1a732a OpenIPMI-tools-2.0.16-13.el5_8.x86_64.rpm Source: d6b5d3d12c378574457be9720a2c31702b6654e0bbdd7799856f2408ae609f38 OpenIPMI-2.0.16-13.el5_8.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 92, Issue 18 ***********************************************

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