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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2k views

How do I install HP CentOS repo's

I have been searching for the answer but unable to find any instructions that work for me. I want to install the HP CentOS repo for my new ML310e Gen8 Server to I can setup the insight management ...
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1answer
5k views

How to add /home/user/public_html as virtual host in apache - centos [duplicate]

In Directadmin (I used it before) when we create a reseller, a new user with a home directory was created and user could add domains in a home directory like /home/user/domains/example.com/public_html ...
1
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1answer
426 views

KVM virtual machine boot messages

Just wondering if anyone knows of a way to stop the following boot messages with a centos 6.5 vm created with qemu-kvm When I start the vm there is a slight delay as the vm posts the following boot ...
0
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3answers
95 views

How to Redirect FROM https TO http [closed]

I have a site that does not need https. We do not collect any information at all, nor do we have any forms. This being so we did not set up an SSL certificate. However, when I go to ...
2
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1answer
815 views

How can I resize my logical volume in CentOS6?

I increased the provisioned size in the Vsphere client to 32GB and I used gparted to resize the VG to 32GB --- Physical volume --- PV Name /dev/sda2 VG Name vg_proxy ...
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1k views

Join samba4 member server

I am installing Samab4-ad in a test environment, to prepare migration from Samba3. All is done is OpenVZ VEs running CentOS 6. I have successfully installed DC1 and DC2 using sernet-samba rpms ...
1
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1answer
655 views

iptables v1.4.7: option `state' requires an argument

Hi I'm trying to set IPTABLE rules and I get the error iptables v1.4.7: option `state' requires an argument when trying to issue. iptables -A FORWARD -m state --state RELATED,ESTABLISHED -j ACCEPT ...
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0answers
182 views

Can't make Koji Work on A Centos6 server

I setup the koji build environment in a Centos6 Machine server as suggested by the documentation (http://fedoraproject.org/wiki/Koji/ServerHowTo). I could properly access the Koji Web using http. Yet ...
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1answer
4k views

CentOS6 and long Wait IO time on jbd2/dm-0-8

Linux box running CentOS 6.5 and 2.6.32-431.3.1.el6.i686 kernel recently got CPU spikes up to 99% causing by Wait IO. Executing while true; do date; ps auxf | awk '{if($8=="D") print $0;}'; sleep 1; ...
2
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1answer
1k views

where does rpm install custom gpg keys?

Where does CentOS/RHEL 6 store custom gpg keys? I thought /etc/pki/rpm-gpg but I installed nginx's key but unable to find it. I see it was imported properly but where is it? wget ...
0
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1answer
318 views

Server changes network port being used between PXE boot and the booted OS

Whenever I PXE boot a CentOS 6.5 server, I have some grief with the server using different network ports between installation and the booted operating system. I've seen this with multiple servers ...
0
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1answer
122 views

Does EC2 need Xen kernel?

I am on to creating a new AMI image for CentOS 6.4. Until now I was on CentOS 5.6. I started with the CentOS market place image, and what I noticed is that it is running a regular kernel and not xen ...
0
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1answer
290 views

libcrypt.a undefined reference to NSSLOW_

We have centos6 6.5 64bit server. It had been setup for 32bit development. Our project is statically linked. A team member installed the most recent openssl, openssl-devel, and openssl-static 64bit ...
1
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1answer
559 views

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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3answers
197 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.
0
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1answer
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 ...
1
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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 ...
0
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1answer
88 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 ...
0
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1answer
187 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 ...
0
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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 ...
0
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1answer
986 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
217 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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0answers
232 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 ...
3
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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: ...
0
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1answer
820 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
669 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 ...
0
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1answer
376 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
26 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'` ...
2
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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 ...
2
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2answers
82 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 ...
1
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1answer
483 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
41 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 ...
0
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1answer
122 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
115 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.
5
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1answer
791 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 ...
0
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1answer
180 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 ...
2
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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 ...
1
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1answer
259 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 ...
0
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1answer
101 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
641 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 ...
2
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2answers
488 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 ...
3
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2answers
7k 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 ...
0
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1answer
229 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 ...
2
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2answers
275 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
319 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 '^#' * ...
2
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1answer
379 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 ...
3
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1answer
430 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 ...