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70-persistent-net-rules
by Jerry Geis 14 Jul '12

14 Jul '12

When my machine installs (CentOS 6.3) the two network cards are getting reversed. The PCI card is getting eth0 and the motherboard is getting eth1. I would like them in reverse order to keep things the same as they used to be. How can I easily tell these two to reverse? Generate the 70-persistent-net-rules with motherboard eth0 first then the PCI slot? Thanks, Jerry

5 6

can NOT delete LV (in use) problem...
by mcclnx mcc 13 Jul '12

13 Jul '12

We have CENTOS 5.6 on DELL server. I create VG and LV on one SSD disk. after couple weeks I decide to delete it. I unmount file system but can not delete LV. It say "in use". I try following but still NOT work: # lvchange -an /dev/VG0-SSD910/LV01-SSD910 LV VG0-SSD910/LV01-SSD910 in use: not deactivating # kpartx -d /dev/VG0-SSD910/LV01-SSD910 # lvchange -an /dev/VG0-SSD910/LV01-SSD910 LV VG0-SSD910/LV01-SSD910 in use: not deactivating Anyone have ideal how to delete it? Thanks.

3 2

Strange httpd problem
by Eric Viseur 13 Jul '12

13 Jul '12

Hi, I'm currently setting up an IP accouting machine using CentOS 6 and pmacct, compiled from source. The machine has two network interfaces : - a "normal" one, used for SSH remote administration and viewing the accouting data through a webserver (eth0) - a "monitor" one, plugged into a mirroring port of our switch and with no IP address defined (eth1) The accouting part works fine, but I'm getting problems with the webserver. To ensure there are no interference with the monitor interface, I set iptables to drop all the outbound traffic on eth1 and httpd in bound to the IP address of eth0, but I randomly become unable to contact the webserver; my browser tells me it couldn't contact it. The SSH access works fine and the CPU and memory usage are OK (5% CPU and 10% memory, our network is currently on low traffic). Any clues why this is happening ? Regards, Eric Viseur

2 1

XEN or KVM - performance/stability/security?
by Rafał Radecki 13 Jul '12

13 Jul '12

Hi all. I am currently building a small test cloud based on Eucalyptus 2.0.3 and CentOS 5.8 x64. I have a choice which hypervisor to use: KVM or XEN. KVM is the default in CentOS 6 but I have read also many good things (for example PV guest machines, isolation between Dom0 and DomU) about XEN. Key factors from my opint of view are: - stability (which one runs more smoothly on CentOS?) - performance (XEN PV/HVM(with or without pv drivers) vs KVM HVM(with or without pv drivers)) - security Could you share your experience in these areas? Best regards, Rafal Radecki.

14 31

Re: [CentOS] ssh port forwarding
by We Are Here 13 Jul '12

13 Jul '12

At 19:15 12/07/2012, you wrote: Hi Doug, >Thanks for the feedback Tim. Glad I could help. >Using your string, I can now telnet to port 22222 on localhost (hostA) and >I get the mysql connection string (from hostB), but it is not able to make >a mysql connection (using mysql -u user -p -h localhost --port=22222 from >hostA), with a test user that I set up to allow connections from anywhere. >The error that I am getting is: >ERROR 2002 (HY000): Can't connect to local MySQL server through socket >'/var/lib/mysql/mysql.sock' (2) > >I did test and the mysql test user that I created is able to connect from >hostB. Because the mysql connection is via an ssh tunnel, you need to ensure on the MySQL server hostB that is allows the mysql user access from 127.0.0.1 on hostB as that is effectively where the MySQL server on hostB sees the connection coming from. >Also, when I do this, it still opens up an ssh session, logging me into the >remote machine, thus making it so I can't use this terminal. Yes you need to run it is a screen session if you want it permanently connected. >The eventual goal is to do this in a script, that will open the connection, >use it for the duration of the script, and then close it when the script >finishes, but it looks like that won't work, since it is logging me into >the remote machine. I guess I could get around that by always leaving the >screen session going with the connection, but I would prefer only creating >the connection when I need it. > >Any ideas how to do this without leaving the connection open all the time? I have used an expect script to do this in the past. Which allows you to remotely log in to a server. Downside is you need to store the password in plain text in the expect script. So make sure only root can read the script. Or setup a lower privilege user to use sudo and do it that way. regards Tim Tim D'Cruz

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CentOS-announce Digest, Vol 89, Issue 5
by centos-announce-request＠centos.org 13 Jul '12

13 Jul '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-2012:1075 CentOS 6 libvirt-java Update (Johnny Hughes) ---------------------------------------------------------------------- Message: 1 Date: Fri, 13 Jul 2012 13:35:27 +0000 From: Johnny Hughes <johnny(a)centos.org> Subject: [CentOS-announce] CEBA-2012:1075 CentOS 6 libvirt-java Update To: centos-announce(a)centos.org Message-ID: <20120713133527.GA26599(a)chakra.karan.org> Content-Type: text/plain; charset=us-ascii CentOS Errata and Bugfix Advisory 2012:1075 Upstream details at : https://rhn.redhat.com/errata/RHBA-2012-1075.html The following updated files have been uploaded and are currently syncing to the mirrors: ( sha256sum Filename ) i386: 8c9a2025b8092b45e3141c12e7bb814b5869a7303f71b6525288a7cd3425c9bc libvirt-java-0.4.7-1.el6_3.1.noarch.rpm b302c30be2d44057a3c6f2dfa715101afa9b54883ee757307ec776688aa2f4ee libvirt-java-devel-0.4.7-1.el6_3.1.noarch.rpm 0c596c1602954e23e562686f0aa611e0a0161d06f226fab86a148428fbd60309 libvirt-java-javadoc-0.4.7-1.el6_3.1.noarch.rpm x86_64: c3f14ea20fcca9aa71e6f2562fbedab292ab51da640b1b175fd46b3ca990422e libvirt-java-0.4.7-1.el6_3.1.noarch.rpm b80c5737183bb724850f993b8da92179087b5956450893883d7ff0b994a50095 libvirt-java-devel-0.4.7-1.el6_3.1.noarch.rpm 5f63bf79bb1a70f7edf325d396849c91beb5531ec97e1bd33e732861c082bff2 libvirt-java-javadoc-0.4.7-1.el6_3.1.noarch.rpm Source: 2cbc4426abb05cae390c1d7a08ee0aa78618b80c07205911b2a3347408a0efea libvirt-java-0.4.7-1.el6_3.1.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 89, Issue 5 **********************************************

1 0

version bind to 6.3 release and back port option
by fakessh 13 Jul '12

13 Jul '12

-----BEGIN PGP SIGNED MESSAGE----- Hash: SHA1 hello guys they are the new features of bind version from back port doors superior to the current version of centos 6.3 inline signing it is present what are the new functionality provides for this update - -- http://pgp.mit.edu:11371/pks/lookup?op=get&search=0xC2626742 gpg --keyserver pgp.mit.edu --recv-key C2626742 http://urlshort.eu fakessh @ http://gplus.to/sshfake http://gplus.to/sshswilting http://gplus.to/john.swilting https://lists.fakessh.eu/mailman/ This list is moderated by me, but all applications will be accepted provided they receive a note of presentation -----BEGIN PGP SIGNATURE----- Version: GnuPG v2.0.14 (GNU/Linux) Comment: Using GnuPG with Mozilla - http://enigmail.mozdev.org/ iEYEARECAAYFAlAAIAIACgkQNgqL0sJiZ0KMGwCgmfD5tsTx1KkP5u5SLZD2vKSE kl4AoNCi8OTd2Is1YODxjYetc62OYnQR =O5on -----END PGP SIGNATURE-----

1 0

Curiosity Question
by Phil Savoie 13 Jul '12

13 Jul '12

Hi All, During updates I see a number preceding the package to be updated as indicated in the below example: 1:perl-Module-Build-0.3500-119.el6_1.1.x86_64 ^ Does anyone know what does this indicates? Thank you, Phil -- Carpe Aptenodytes! (Seize the Penguins!)

2 2

php-pear missing from 5.8 (i386) metadata?
by Leonard den Ottolander 12 Jul '12

12 Jul '12

Hi, # yum install php-pear <snip> No package php-pear available. Nothing to do This is on CentOS 5.8 (i386). The package is available for both archs on the two mirrors I checked. I also tried a # yum clean headers # yum clean metadata # yum clean dbcache to no avail. Am I missing something or is it the metadata? Regards, Leonard. -- mount -t life -o ro /dev/dna /genetic/research

3 3

Help Installing Codeblocks on Centos 6.4
by Patrick Kongawi 12 Jul '12

12 Jul '12

To whom this may concern I have read the read me file provided by the OS. I followed the directions but I can not install Codeblocks from source code. The terminal tells me that the files are not in my home folder. Whe I check I see the folders. I don't know what to do. Thank you for your time. Sincerley Patrick Kongawi

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