CentOS is a Linux distribution standing for "Community ENTerprise Operating System" and is a rebuild of "Red Hat Enterprise Linux" (RHEL). The "CentOS6" tag refers to versions 6.x of CentOS.

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how to install python-elementtree on CentOS 6.5?

How to install python-elementtree on CentOS 6.5 using yum? I need it for s3cmd, but their documentation page doesn't explain it.
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228 views

Linux: How to receive warning email from a server when not much hard drive space left? [closed]

I am building a new CentOS 6.4 server. I was wondering if there is a way I can receive a warning email when the use of any partition exceeds 80% in the server. Thanks in advance.
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2k views

rsync permission fail cannot open directory

i encounter a problem when troubleshooting rsync server and client. rsync: opendir "/." (in pub) failed: Permission denied (13) drwxr-xr-x 4096 2014/01/27 12:02:24 . rsync error: some ...
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1answer
2k views

Adding Single Line to File with SaltStack

I would like to add the following lines to all /etc/sudoers files across my environment: # Administrators LDAP Group %Administrators ALL=(ALL) ALL However, each server has a different ...
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1answer
92 views

Zero length and zero permission files created on NFS mount

We have one NFS share mounted from one server to another (first is exporting, second is mounting). Sometimes when the file is created on the server, which has the NFS volume mounted, the file ends up ...
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1answer
211 views

apache 2 + centos 6 + php 5.3.3. - Segmentation fault (11) - tsrm_realpath_r

we have problem with many JOOMLA sites on our servers. Error is only Segm. fault 11. In browser is "no data". After debug trace I have this. ¨Core was generated by `/usr/sbin/httpd'. Program ...
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3answers
1k views

How do I setup Sendmail + Dovecot + Roundcube on CentOS6 [closed]

Pretty much what the title says. I've been digging all over the internet trying to figure this stuff out. I have a CentOS 6 box. I have Sendmail and Dovecot and Roundcube all installed. Roundcube ...
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1answer
1k views

Monit is not restarting process

I have monit to monit a process but it doesn't realize it is down. My monit configuration is this: check process xxx with pidfile /var/run/xxx.pid group yyy start program = "/etc/init.d/xxx start" ...
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1answer
240 views

How to install pip and other specific python modules onto a CentOS server that is air-gapped from the internet?

Ultimately, I'm trying to install SaltStack on a super computer that has no internet connection. And I'm not allowed to hook it to the internet. So far, I have installed an entire yum repo on the ...
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0answers
7 views

IfModule directive strange behaviour

I've configured 3 virtual servers for Apache2 under Centos6. Each server config is wrapped inside IfModule directive like this: <IfModule mod_fcgid.c> Listen 15100 NameVirtualHost ...
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254 views

CentOS hangs on boot after watches established

CentOS can not boot and hangs after Setting up watches. I saw the following in verbose boot. But It will boot into single user mode. CentOS 6.5 X64 any ideas to fix this please? Starting crond ...
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1answer
2k views

How to replace QEMU binary with newer version for libvirt live snapshots

This is my first post, so please be gentle. :) My CentOS 6.5 box has a QEMU binary that does not support live external snapshots. This is the command I attempt on the virsh CLI, and its output: ...
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1answer
903 views

brctl addbr and bonding not working for CentOS6 if IPv6 is disabled

I set up a CentOS6-XEN4-Server according to these instructions. Now I want to set up bridges - first manually: brctl addbr test - but this fails with: "add Bridge failed: Package not installed" ...
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1answer
715 views

High CPU Load, Crashes frequently [closed]

I have been struggling the past few days to keep my server up and running. The load averages hover around 2 and peak in the double digits until it crashes. Currently I am on a cloud VPS with WHM and ...
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1answer
398 views

Can't get pspell to work

I installed aspell\pspell, and if I do > aspell dump dicts ar cs de de_AT de_CH de_DE en en-variant_0 en-variant_1 en-variant_2 en-w_accents en-wo_accents en_CA en_CA-variant_0 en_CA-variant_1 ...
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1answer
1k views

Centos syslog isn't logging to custom file from bash script

I'm trying to get a bash script to log to a custom log file using syslog on Centos release 6.5, but it always just logs to /var/log/messages like so: Jan 12 09:54:47 localhost nbsp: Test message ...
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1answer
27 views

Unable to send command to newly created screen?

screen -dmS SIEGE_01 sleep 1 screen -S SIEGE_01 -X stuff "cd /home/ss12036/ImpulseNetwork/Servers/SIEGE_01/"`echo -ne '\015'` sleep 1 screen -S SIEGE_01 -X stuff "sh Start.sh"`echo -ne '\015'` ...
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1answer
4k views

vsftpd - The data connection could not be established: EHOSTUNREACH - No route to host

I have a VPS running vsftpd v3.0.2 on CentOS 6.4. When I try to connect to my ftp server I get the error: The data connection could not be established: EHOSTUNREACH - No route to host The console ...
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2answers
83 views

What is the deal with Centos repos? How many?

I am a long time Debian user, now at work have to manage several Centos machines, but I'm used to 1,2 or at most 3 repos on Debian, the centos repo file is full of links, and I dare to say they aren't ...
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1answer
503 views

Shutdown error on CentOS 6.5

On a KVM host, after gracefully shutting down the guest KVM, I get: [root@kvm]# /sbin/shutdown -h now Broadcast message from vmadmin@kvm.mattermedia.com (/dev/pts/1) at 15:23 ... The system ...
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0answers
42 views

Binding of IPs not working

I have two IP address ranges in my server. CentOS 6.2 The first one, is ok and working Then second range is suposed to be binded to eth0, using the cloning resource available in RedHat systems. My ...
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1answer
129 views

Close putty connection from CentOS 6 shell script

as title says I have a centOS 6 machine which uses an dracut, initramfs preboot ssh. I want to create a shell script that at the end of it's execution it closes the console and ssh connection. How can ...
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1answer
127 views

Create centOS6 snapshots

How can I create snapshots of system (similar to what VM have) of a centOS 6 to a network location? That is I need to know what software/package should I use and maybe some ways to work with it.
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864 views

linux OOM-kill why?

. Greetings, fellow admins. I post in the hope of shedding light on the OOM-kills that haunt one of my company's machines. I cannot decide if they are legit OOMs or not. It's a Centos 6.x with kernel ...
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1answer
192 views

nginx and Mysql Server Load limits (depend on Server config)

my server config is Technology: Ivy Bridge Processor: Intel Xeon E3 1245v2 Intel Smart Cache: 8MB Cores: 4 Threads: 8 Frequency: 3.4GHz+ Turbo Boost: 3.8GHz Virtualization: yes ...
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1answer
2k views

Impossible to start named on Centos

I installed bind on Centos 6.5 with yum install bind-chroot bind-utils. It's not the first time I do this and generally this works fine. But now I try this on some server and it doesn't work at all. ...
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2answers
1k views

Is there a way to exclude specific hosts from a Nagios hostgroup?

I have a Nagios server which includes many hostgroups. One of these hostgroups include a server which I'd like to exclude from being checked for one specific Nagios Check but I want it to keep being a ...
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1answer
292 views

VPS CentOS 6.3 x64 recovery mode changes are not saved after reboot

i am running a CentOS 6.3 x64 OS on a VPS server, the server was having issues logging in to SSH using root credentials, it showed a message similar to "No Shell Exists, Access Denied" root login via ...
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1answer
105 views

grant remote access to mysql

Hello I am on a Centos VPS with nginx + mysql + php-fpm installed. I am trying to allow remote access to a database on this machine from another of my VPS. I tried out the following steps. Modified ...
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2answers
697 views

Error 502 - Random SSL Library Error: 336151568 error:14094410

I'm facing a random 502 error on my webservers. Rate : 0.5% Error in my logs: SSL Library Error: 336151568 error:14094410:SSL routines:SSL3_READ_BYTES:sslv3 alert handshake failure OpenSSL Version ...
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2answers
544 views

How to download the saved images in the Rackspace cloud server?

I wonder if someone know how could I download the saved server image in a Rackspace cloud server. I have been searching and nothing found even in the Rackspace knowledge base. I know it is stored in ...
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2answers
9k views

How to remove old kernels on CentOS 6 (to free up boot partition)? [duplicate]

How does one determine which kernels to remove in order to free up some space on /boot partition. Here is a scenario (some background info). 1. Parititon info (in case it helps) # df -h Filesystem ...
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1answer
252 views

ssh warning message missing file issue

When I log into ssh (centos 6.5 64bit) Can't locate warnings.pm in @INC (@INC contains: /usr/local/lib64/perl5 /usr/local/share/perl5 /usr/lib64/perl5/vendor_perl /usr/share/perl5/vendor_perl ...
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2answers
290 views

Exactly how much is backported into RHEL [qemu-kvm specifically]? Only security patches, or perfomance improvments too?

https://access.redhat.com/site/security/updates/backporting/?sc_cid=3093 http://froginapan.blogspot.com/2012/07/redhats-backporting-activity.html As the above two links suggest, only security patches ...
3
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1answer
360 views

Unable to allow users access to SVN repo, what could be the cause?

I've installed a SVN server and configured a repository inside it. It is accessible by Apache. I've allowed access to 3 users, here are the repository conf files: [root@afdev conf]# egrep -v '^#' * ...
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1answer
406 views

Cannot access Wordpress post: 403 Forbidden Access error

I have just installed Wordpress and can access the Control Panel at /wordpress/wp-admin/index.php but when I try to view a test post at www.mydomain/wordpress/?p=1 I am getting a pesky 403 Forbidden ...
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1answer
488 views

Kickstart partitioning with ext4 in autopart mode?

When installing CentOS 6.x, how to specify the filesystem type with ext4 and also use the autopart directive in kickstart file? The default filesystem type with autopart directive used is ext3, which ...
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2answers
400 views

How can I keep important VMs in memory without disabling swap?

VM Host -> Xenon E5-2440 w/ 48G mem... Everything runs CentOS6.5 (2.6.32-431) I have 4 guest VMs running each w/ 2G of memory. Their disk images are local files. The host machine is also running a ...
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1answer
5k views

OpenVPN not redirecting all traffic through VPN

I have just finished setting up my VPN, and google shows my IP to be that of my VPN, so this works fine. However, when I log in through SSH to the VPN server, it shows my last login to be that of my ...
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3answers
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CentOS https error upon starting apache [closed]

I am getting an error in CentOS when trying to start/restart apache(httpd): [root@database ~]# /etc/init.d/httpd restart Stopping httpd: [FAILED] Starting ...
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4answers
5k views

Trying to install PHP MySQL driver with MariaDB already installed

I have a VPS which came from an image called CentOS 6.4 x64,Nginx,php-fpm,MariaDB. PHP and MariaDB are both installed, but it seems that PHP does not have the MySQL driver installed. I first tried ...
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3answers
2k views

Yum Update Issue

Not sure if I should asking this here but am quite stuck at the moment. I wouldn't be the best on Linux but can get around. My issue is with Yum update on my CentOS 6.3 x64 system. Basically for ...
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CentOS 6.5 Xen Virtual Machine Issue 'this function is not supported by the connection driver'

I am trying to segment my system into a number of virtual machines but just cant seem to get this to work. I think I am close but not quite there. I have install xen, virsh, xl etc and I am using ...
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1answer
1k views

Should these log errors worry me?

So I don't get whats with all these error messages. I was told someone may be attempting to hack my server, but I ain't 100% sure whats going on. I am running CentOs 6. Here is a list of errors that ...
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2answers
294 views

What “PAL Shim AllocRequest returning NULL” meens?

On a HP DL380e Gen8 with Dynamics Smart Array and SAS RAID installed I try to install Centos, after load the RAID Driver from HP Support Site I can access the RAID and do the installation. The ...
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1answer
605 views

nagios Not Found error [closed]

in log files and when apachectl restart show : Warning: DocumentRoot [/home/test/domains/suspended/crm] does not exist Warning: DocumentRoot [/home/test/domains/suspended/crm] does not exist ...
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1answer
52 views

Unable to set proper permission in my centOs6 [duplicate]

I am trying to setup WordPress on CentOs6 for the first time and facing issue with proper file permission. I am using Linode VPS hosting and have chosen centOS6 as my OS.I am able to install WordPress ...
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2answers
1k views

How to limit connection speed

I am on CentOS 6.4 and am using Plesk v11.5.30 although this doesn't necessarily need to be done via plesk. I am looking to limit the connection speed to a specific website. However the only options ...
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1answer
326 views

mod_proxy_html garbles non-ASCII characters

I've set up a reverse proxy with mod_proxy, mod_proxy_html (3.1.3) and mod_xml2enc on a CentOS 6.4 box. The proxy serves up the target server just fine, but it garbles non-ASCII characters (in my ...
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2answers
1k views

Apache Test page shown instead of ISPCofig [closed]

I'm new to ISPConfig and I used website tutorial to setup. I have installed ISPConfig 3 on a vmware VM with CentOS 6.3. I use static IP for guest OS. After installing ISPConfig 3, I went to host OS ...