Discuss February 2013

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203 participants
197 discussions

drbd and el6
by John R Pierce 01 Mar '13

01 Mar '13

hey, I have an application for drbd replication between a pair of EL6 servers, and I just realized that drbd is no longer built in. googling found me this blog on doing it using ElRepo distributions... http://www.broexperts.com/2012/06/how-to-install-drbd-on-centos-6-2/ is that still best practice? or is there a better distribution? or really... my application is a BackupPC server replicating its backup volume to a standby server (hey, no backup is really a backup, unless there is a backup of the backup, right?). is there a better/alternate way of maintaining a mirror of a backupPC volume than drbd... the backup volume is initially 8TB and could well grow to 3 times that over time. its stored on an XFS file system, under LVM, on striped raid6 volumes. -- john r pierce 37N 122W somewhere on the middle of the left coast

10 14

remote logging with rsyslog
by Nelson Green 01 Mar '13

01 Mar '13

This is a similar post to one I've made on the rsyslog list that has received no responses after four days, so I figured I'd try here since the problem seems to be CentOS specific. This is also my second attempt to send it to this list as the first seems to have never showed up. I am trying to test remote logging between two CentOS 6.3 systems and unable to get the client logs to show up on the server, using the RELP module. First of all, the client is a stock install of CentOS 6.3 running rsyslog v5.8.10. I inherited the server, but the change logging that we keep indicates it is pretty much stock too, and it is v5.8.10 as well. On the server, I added to /etc/rsyslog.conf: $ModLoad imrelp $InputRELPServerRun 20514 And restarted the daemon: sudo service rsyslog restart Shutting down system logger: [ OK ] Starting system logger: [ OK ] On the client, I added to /etc/rsyslog.conf: $ModLoad omrelp $WorkDirectory /var/spool/rsyslog $ActionQueueType LinkedList $ActionQueueFileName syslogfwd $ActionQueueMaxDiskSpace 10g $ActionResumeRetryCount -1 $ActionQueueSaveOnShutdown on *.* :omrelp:xxx.xxx.xxx.xxx:20514 And restarted the daemon: sudo service rsyslog restart Shutting down system logger: [ OK ] Starting system logger: [ OK ] Nothing ever showed up on the server, so I started going through the troubleshooting steps, which includes running the client in foreground mode and logging debug output: sudo service rsyslog stop sudo /sbin/rsyslogd -dn > /tmp/rsyslog.debug However, as soon as the service started in the foreground, log entries began showing up on the server. But when I stop the foreground service and restart it as a background service, the log entries quit showing up at the server. I can change things around so that tcp is used instead of RELP, and everything works that way. The problem is specific to using RELP in the normal background mode. I also tested the above RELP configuration on two Debian Wheezy boxes, each running rsyslog v5.8.11, and everything worked as expected. So the problem seems to be specific to CentOS with RELP. Has anyone gotten this to work on CentOS? Thanks, Nelson

2 5

Re: [CentOS] CentOS 6.4 in the making perhaps?
by Nux! 28 Feb '13

28 Feb '13

On 28.02.2013 08:31, Sorin Srbu wrote: > I see Johnny Hughes has released CR-updates for CentOS 6. > > Is CentOS 6.4 brewing yet then? 8-) https://www.youtube.com/watch?v=N9lbCrjqMKw -- Sent from the Delta quadrant using Borg technology! Nux! www.nux.ro

3 2

CentOS 6.4 in the making perhaps?
by Sorin Srbu 28 Feb '13

28 Feb '13

I see Johnny Hughes has released CR-updates for CentOS 6. Is CentOS 6.4 brewing yet then? 8-) -- BW, Sorin ----------------------------------------------------------- # Sorin Srbu [Sysadmin, Systems Engineer] # Dept of Medicinal Chemistry, Phone: +46 (0)18-4714482 >3 signals> GSM # Div of Org Pharm Chem, Mobile: +46 (0)70-4250229 # Box 574, Uppsala University, Fax: +46 (0)18-4714482 # SE-751 23 Uppsala, Sweden Visit: BMC, Husargatan 3, D5:512b # Web: http://www.orgfarm.uu.se ----------------------------------------------------------- # () ASCII ribbon campaign - Against html E-mail # /\ # # This message was not sent from an iProduct! # # MotD follows: # CentOS: In Service.

1 0

hp1213nf mfp printer driver in centos6.2
by Asok Mallick 28 Feb '13

28 Feb '13

Dear Sir, Please know me how to function hp 1213nf mfp printer (printer + scanner + fax + copy) in centOS 6.2. The computer shows the printer but cannot oprate. the message displayed "Missing printer driver" etc. This will be very helpful to me if anyone can inform me the technique to operate this printer in centOS 6.2. Thanking you, Yours faithfully, Asok mallick.

3 3

Samba authentication against 389 DS
by Todor Petkov 28 Feb '13

28 Feb '13

Hello, I am using Centos 6 with 389 DS. Everything is working, I can authenticate my users against it etc. Now I am trying to make Samba authenticate against the LDAP by following http://directory.fedoraproject.org/wiki/Howto:Samba However, it seems that Samba does not read the 'password' value, but 'sambaNTPassword'. I wrote in 389-DS mailing list and they said, that there is no way to make Samba read the 'password'. So I must end with two password (Samba and "normal" one). I can not sync them, since crypt algorithms are different and I can not just copy/paste the password to sambaNTPassword. Did someone else had this issue? I need some file sharing software (can be even a web application), which can authenticate against LDAP, so all the people have one password for authentication. Regards,

4 7

VNC server not reponding to external requests
by Neil Aggarwal 28 Feb '13

28 Feb '13

Hello everyone: I tried following the instructions on this page to set up a VNC server: http://wiki.centos.org/HowTos/VNC-Server I can telnet to port 5901 from the machine itself: # telnet 127.0.0.1 5901 Trying 127.0.0.1... Connected to 127.0.0.1. Escape character is '^]'. RFB 003.008 But, when I try to connect to it from the outside world, I get a connection timeout. My /etc/sysconfig/vncservers file does not have the -nolisten tcp nor the -localhost options so it should be configured to accept outside connections. Is there some default setting in the vncserver that I need to change to allow outside connections? Thanks, Neil -- Neil Aggarwal, (972)834-1565, http://UnmeteredVPS.net/centos Virtual private server with CentOS 6 preinstalled Unmetered bandwidth = no overage charges

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SNAT Logging
by Antonio da Silva Martins Junior 28 Feb '13

28 Feb '13

Hi All, I'm running our network with an 10/8 IPv4 subnets, with an SNAT catch all rule on the iptables firewall to the world. Is there a pratical way to log each connection? Maybe an "automatic hotspot" wich will assign an "external" IP to each "internal" one, and log it. What are you using folks? Thanks, Antonio. -- +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+ | Antonio S. Martins Jr. - Support Analyst | "Only The Shadow Knows | | Universidade Estadual de Maringá - Brasil| what evil lurks in the | | NPD - Núcleo de Processamento de Dados | Heart of Men!" | | E-Mail: asmartins(a)uem.br / shadow(a)uem.br | !!! Linux User: 52392 !!! | +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+ "Real Programmers don’t need comments — the code is obvious." -- Esta mensagem foi verificada pelo sistema de antivirus e acredita-se estar livre de perigo.

2 1

Is 6.4 out?
by m.roth＠5-cent.us 28 Feb '13

28 Feb '13

My manager was just asking me if it's out - he's just gotten a large number of updates on one of our systems, just now. Please note this is NOT INTENDED TO START ANOTHER IDIOT FLAMEWAR; I'm just asking for a clarification, given that I don't see anything on the CentOS site. mark mark

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CentOS 6.4 i386 and x86_64 Packages Available in the Continuous Release (CR) Repository
by Johnny Hughes 28 Feb '13

28 Feb '13

The CentOS-6.4 Packages for the i386 and x86_64 Architectures are now available via the Continuous Release (CR) Repository. The CR Announcements for CentOS-6.4 can be viewed here: http://lists.centos.org/pipermail/centos-cr-announce/2013-February/thread.h… More information about the CR Repository and how to install it is available here: http://wiki.centos.org/AdditionalResources/Repositories/CR As explained in the above link, we are still doing advanced QA testing on CentOS-6.4 and there may be some minor changes before the final release. This "opt-in" CR Repo process allows earlier access to our best effort packages now while we complete the final CentOS-6.4 QA processes, spin the ISOs and create an installable tree. Thanks, Johnny Hughes

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Discuss February 2013