Discuss October 2013

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179 participants
157 discussions

building software raid.
by Johan Vermeulen 05 Nov '13

05 Nov '13

dear All, I'm spending the afternoon trying to build software raid using this ( excellent ) guide : http://wiki.centos.org/HowTos/Install_On_Partitionable_RAID1 I'm doing this not only because this machine has no raid controller - I could go out and buy one - but also because I hope software raid will provide easier monitoring. This is a newly installed, updated Centos6.4 standard machine. So far I arrived at part1 step 4: -----> mdadm --add /dev/md_d0 /dev/sdb and this is on 16.6 % Looking at part 2 , step 2 : ------------> Edit /etc/fstab, you must change all mounts from using LABEL= to explicit device names, like /dev/md_d0p1, /dev/md_d0p2, ... I'm wondering where I can find the names md_d0p1, p2 and so on. Can anyone help me on this? Thanks very much. Greetings, J. -- Johan Vermeulen IT-medewerker Caw De Kempen johan.vermeulen(a)cawdekempen.be 0479.82.01.41 Opensource Software is the future.

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Re: [CentOS] How should I reinstall CentOS?
by Denniston, Todd A CIV NAVSURFWARCENDIV Crane 05 Nov '13

05 Nov '13

> -----Original Message----- > From: Les Mikesell [mailto:lesmikesell@gmail.com] > Sent: Tuesday, October 29, 2013 5:25 PM > To: CentOS mailing list > Subject: Re: [CentOS] How should I reinstall CentOS? > > On Tue, Oct 29, 2013 at 3:47 PM, Michael Hennebry > <hennebry(a)web.cs.ndsu.nodak.edu> wrote: > > <SNIP> > > > I'm not willing to put in another week of > > effort out of a probably vain hope of discovery. > > You might try running 'rpm -Va' to see if there are any surprises in > the list of differences between the current state and what was > installed. > > -- > Les Mikesell > lesmikesell(a)gmail.com Note on the rpm -Va... I had an issue recently where a package (openoffice) would not work correctly and: yum reinstall openoffice\* #did not help rpm -Va #did not find ANY issues (which surprised me when I did figure out what was wrong) however doing a (I did a more restricted, to openoffice files, version of) find /usr/ -not -perm -o+r -exec ls -lhd {} + find /usr/ -type d -not -perm -g+x -exec ls -lhd {} + find /usr/ -type d -not -perm -o+x -exec ls -lhd {} + found files that were not even set to write for ROOT (and in general had NO permission for anyone else)! The idea is basically that almost all files in /usr/ should be READABLE by any user and almost all directories should be READABLE & EXECUTABLE by all so that they can list and read the files in them. I don't know if the commands at http://www.cyberciti.biz/tips/reset-rhel-centos-fedora-package-file-perm ission.html would have fixed the issue, because I brute forced the perms to root writeable and then reinstalled the packages again. BTW, I still feel a little confused on what the OP's original problem was and why they are headed in the direction of a 'reinstall the system'. Seems a bit overkill for most problems. Even when this disclaimer is not here: I am not a contracting officer. I do not have authority to make or modify the terms of any contract.

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ZFS on Linux in production?
by Lists 05 Nov '13

05 Nov '13

We are a CentOS shop, and have the lucky, fortunate problem of having ever-increasing amounts of data to manage. EXT3/4 becomes tough to manage when you start climbing, especially when you have to upgrade, so we're contemplating switching to ZFS. As of last spring, it appears that ZFS On Linux http://zfsonlinux.org/ calls itself production ready despite a version number of 0.6.2, and being acknowledged as unstable on 32 bit systems. However, given the need to do backups, zfs send sounds like a godsend over rsync which is running into scaling problems of its own. (EG: Nightly backups are being threatened by the possibility of taking over 24 hours per backup) Was wondering if anybody here could weigh in with real-life experience? Performance/scalability? -Ben PS: I joined their mailing list recently, will be watching there as well. We will, of course, be testing for a while before "making the switch".

14 33

3rd party repositories
by isdtor 03 Nov '13

03 Nov '13

Can anyone comment on the use of 3rd party repos for newer versions of software like php, python and mysql? Two I am aware of are puias and ius. Is one preferable to the other? Can their packages be installed in parallel to and without interfering with base packages?

16 22

(no subject)
by Kaplan, Andrew H. 31 Oct '13

31 Oct '13

Hello -- We are running CentOS 6.3 64-bit distribution on one of our servers, and I am involved in upgrading the Apache and OpenSSL packages. I completed an upgrade to both where the version of each that is installed on the server is the following: httpd 2.2.15-29.el6.centos httpd-manual 2.2.15-29.el6.centos httpd-tools 2.2.15-29.el6.centos openssl 1.0.0-27.el6_4.2 openssl-devel 1.0.0-27.el6_4.2 Are these the latest versions of Apache and OpenSSL that are available to CentOS in package format? If not, what repository can I go to for the latest versions? Thanks. The information in this e-mail is intended only for the person to whom it is addressed. If you believe this e-mail was sent to you in error and the e-mail contains patient information, please contact the Partners Compliance HelpLine at http://www.partners.org/complianceline . If the e-mail was sent to you in error but does not contain patient information, please contact the sender and properly dispose of the e-mail.

3 2

icedtea & firefox
by m.roth＠5-cent.us 31 Oct '13

31 Oct '13

Trying *again*, if dnsorb will let me.... Current 6.4. icedtea-web is installed... but firefox doesn't see it at all. Do I need to make a symlink somewhere? mark

1 1

CentOS-announce Digest, Vol 104, Issue 15
by centos-announce-request＠centos.org 31 Oct '13

31 Oct '13

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. Software Collections for CentOS-6.4 (Testing Repo) (Johnny Hughes) 2. CEBA-2013:1478 CentOS 5 cman Update (Johnny Hughes) 3. CESA-2013:1480 Important CentOS 6 thunderbird Update (Johnny Hughes) 4. CEBA-2013:1479 CentOS 6 mksh Update (Johnny Hughes) 5. CESA-2013:1480 Important CentOS 5 thunderbird Update (Johnny Hughes) ---------------------------------------------------------------------- Message: 1 Date: Wed, 30 Oct 2013 14:51:31 -0500 From: Johnny Hughes <johnny(a)centos.org> Subject: [CentOS-announce] Software Collections for CentOS-6.4 (Testing Repo) To: CentOS-Announce <centos-announce(a)centos.org> Message-ID: <52716343.8050806(a)centos.org> Content-Type: text/plain; charset="iso-8859-1" The CentOS team is happy to announce the testing release of Software Collections for CentOS-6.4 for the x86_64 architecture. We need some testing to be conducted before we can release this repository. You can get the repo file here: http://dev.centos.org/centos/6/SCL/scl.repo Put it in /etc/yum.repo.d/ and you can begin testing. Please see the documentation here for info on what software collections are and how they can be used: http://dev.centos.org/centos/6/SCL/docs/ Please provide feedback via the CentOS mailing list ( http://lists.centos.org//listinfo/centos ) or this bug entry ( http://bugs.centos.org/view.php?id=6719 ). After we get the kinks worked out, we will get Software collections into CentOS proper Note: The documentation is provided to explain how Software Collections work on CentOS. Sections 1.3 and 2.1 are Not applicable (see the instructions above to get the repo file instead). Our builds are designed only to work only on CentOS-6.4, x86_64. Thanks, Johnny Hughes

1 0

puppet, repos, security
by ignasr＠vault13.lt 31 Oct '13

31 Oct '13

Hello list, I am using puppet 2.7.20 from rpmforge, with a build date of Wed 20 Mar 2013. EPEL has an even older version. Then I see this: http://puppetlabs.com/security/cve/cve-2013-3567 that was posted on the month of July 2013. Do I understand correctly, that my puppet-master is vulnerable to remote code execution by every node that has access to master's port tcp/8140? If so, then the only option to use puppet while being safe is to use puppetlabs repo, or build puppet myself? Thank you Ignas

2 1

Re: [CentOS] MySQL 5.5, PHP and other tools still use 5.0 client drivers
by Leon Fauster 31 Oct '13

31 Oct '13

Am 29.10.2013 um 22:56 schrieb Reindl Harald <h.reindl(a)thelounge.net>: >> php-mysql is linked against mysql-5.0-libs and talking to >> a mysql-5.5 server. Should this cause an unpredictable behavior? > > no - how do you come to this idea? In the last decade i saw very strange results while updating or doing similar things. the question above is more a theoretical thought despite the rational knowledge that in this example (communication-layer) the compatibility is preserved. -- LF

3 3

htdocs on NFS share / any pitfalls?
by Leon Fauster 31 Oct '13

31 Oct '13

Hi all, i have a new setup where the htdocs directory for the webserver is located on a nfs share. Client has cachefilesd configured. Compared to the old setup (htdocs directory is on the local disk) the performance is not so gratifying. The disk is "faster" compared to the ethernet link but the cache should at least compensate this a bit. Do they exist more pitfalls for such configurations? Thanks LF PS: checking httpd's caching system now ...

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Discuss October 2013