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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DNS setup on Centos 6 VPS

I have a domain registered through namecheap.com, and I have 2 nameservers for my domain (ns1, ns2.domain.com). Both nameservers are being pointed to my VPS IP address. I can access my VPS fine ...
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309 views

CentOS 6 won't load default (new) kernel, loads (another) older one instead

I am having a weird issue with a CentOS 6 system. I have upgraded the kernel twice now and when I reboot the system it still loads the older kernel. I also had a dc tech watch the screen as it ...
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1answer
240 views

PHP include() through HTTP makes Apache time out

I have a problem with ExpressionEngine2 after moving from an old server to WHM/cPanel running on CentOS6.4. Simple test code to reproduce that issue: <?php $protocol = ...
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2answers
539 views

Managing DNS on CentOS 6.4 [closed]

I am a bit new to this and I look ahead to get answers on how I can do this. It is my first challange and I look ahead to get an assistance from anyone out there if they wish to give me a hand. I ...
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1answer
408 views

Setup default page for Apache Virtual Hosts

We are running Apache on a server with multiple VirtualHost entries. Whenever someone access the server by it's IP address (http://198.147.xx.xx), one of the websites that is a VirtualHost comes up. ...
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1answer
141 views

Where is $HOME set in Centos 6.3

WHere is the $HOME environment variable set in Centos 6.3? I've looked in: /etc/profile /etc/profile.d/* /etc/bashrc ~/.bash_profile ~/.bashrc Also, the second to last column in /etc/passwd has ...
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1answer
2k views

Why can't I connect to my PostgreSQL database?

I'm trying to install tentd-admin. The install fails during this step: $ DATABASE_URL=postgres://localhost/tent_server bundle exec rake db:migrate I also tried this: $ ...
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2answers
221 views

Sphinx searchd dead but subsys locked

I have configured everything on sphinx. It is working fine in the command-line interface using Putty. Even i can able to search in the Command Line Interface as below, [root@phpsalzer sphinx]# search ...
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2k views

Unable to download the Kickstart file…

I have tried for several hours to get this Kickstart installation going but to no avail. I have port 21, 22 and 80 opened and even tried FTP and HTTP to access this Kickstart file but it won't work. ...
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1answer
227 views

CentOS 6 tftp server default boot menu

Edit: I figured it out. I just had to set permissions on my files properly which was causing problems (did not see how I missed that). Thanks everybody for the suggesstions. I am trying to install a ...
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1answer
5k views

Configuring Bind - Error About SOA Record When Starting named Service

It's been entirely too long since I setup a bind server. I've creating a lot of Windows DNS servers lately so I wanted to try my hand at it on CentOS 6. Unfortunately I'm having a slew of trouble ...
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1answer
1k views

Setting up Firewall in CentOS 6.4

I need to ask a general question about installing certain packages and the need to make iptable adjustments in centOS; When I installed the apache package and put a simple test page in /var/www/html, ...
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1answer
929 views

NFS server is ignoring anonuid?

On NFS server I've got user with UID=1024 and GID=1204. On client side too. Both servers are CentOS 6.4 (2.6.32-358.2.1.el6.x86_64). Right now anonuid/anongid is not working. Files aren't mapped to ...
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2answers
4k views

CentOS 6.4 Missing Network Route on boot up after minimal install

I am testing a server configuration using CentOS 6.4. I do a minimal install and in the process of installing choose eth0 to be enabled at boot and enter a static IP address and gateway. When I boot ...
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1answer
1k views

CentOS 6 Unable to Resolve One AD Account

I have a problem that has got me going round in circles. We have 14 Centos 6 AD integrated servers using Samba/Winbind with idmap_ad (security = ads, idmap backend = ad), this setup is running ...
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1answer
388 views

Mono 3.0 not intercepting requests on Apache2/CentOS

I have Mono 3.0.6 up and running on a CentOS 6/Apache 2 setup. I have published an ASP.NET 4.5/MVC4 website on the server. However, when I try to reach the website I get a status code 503 (Service ...
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1answer
936 views

Apache2 doesn't load module mod_mono - CentOS 6

I have compiled and installed Mono 3.0.6, XSP and mod_mono on CentOS, following mostly these instructions. My VHOST is configured as such: <VirtualHost *:80> ServerAdmin ...
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1answer
526 views

Squid user password failed to authenticate after upgraded to CentOS 6.4

I setup a squid proxy server on CentOS 6.3, all works fine. Recently I upgraded CentOS to 6.4, now all the squid user password can not pass the authentication. I use basic ncsa_auth scheme, and the ...
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1answer
460 views

CentOS 6 Mono and Apache

EDIT: Added some extra logs at the end I'm trying to make Mono 3.0 work on CentOS 6 with Apache. I have compiled Mono, mod_mono and the XPS server from the source. But now I'm getting errors because ...
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2answers
62 views

How to move from Fedora 3 to Centos 6 [closed]

I am new to Linux but would like to configure a server with Centos 6 to replace a current one running old Fedora Linux Release 3
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4answers
1k views

cannot use any yum command: no space left on device

if i use any yum command, i get Loaded plugins: fastestmirror Traceback (most recent call last): File "/usr/bin/yum", line 29, in <module> yummain.user_main(sys.argv[1:], exit_code=True) ...
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103 views

CentOS 6.3 iptables IProtation

I want to setup IP rotation on CentOS 6.3 VPS. I've few IPs to play around. I've tried following iptable rules (which I got it from some other forum), but not much help. iptables -t nat -I ...
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1answer
738 views

How to disconnect pptp client?

How to disconnect pptp client connected to Cent OS 6.2 server from the server side ? ifdown ppp0 doesn't work.
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1answer
405 views

Unable to run libvirt with xen on Centos 6. Fails with ioctl 3166208

As per subject. Xen 4.2.1 libvirt 0.10.2-18.el6 Linux gatto.example.com 3.8.3-1.el6xen.x86_64 #1 SMP Sat Mar 16 15:16:57 EST 2013 x86_64 x86_64 x86_64 GNU/Linux I followed the instructions given ...
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3answers
3k views

Nagios email notification not working on CentOS

I have configured Nagios 3.4.4 on CentOS 6.3 Final. I have also configured Postfix with SMTP email server. I have verified from console that I am able to send email notifications and recieved them on ...
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1answer
148 views

PHP CLI vs MOD_PHP and FASTCGI

I asked my server support team to enable MOD_PHP or FASTCGI for me instead of CGI which is currently active. They told me they can active PHP CLI if I ask. AFAK CLI mean Commend Line Interface, so ...
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1answer
242 views

( status=deferred :25: Connection timed out ) issue with Postfix

I have postfix installed on a Centos server with 1 main ip 1.1.1.1 and a range of ips 2.2.2.0/24 The problem is : i can only send mail with the main ip 1.1.1.1, when i change it to another one from ...
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2answers
1k views

How to install Sphinx on CentOS 6 where the DB and App server are separate servers

First what is the best way to install Sphinx on a centOs server rpm -ivh http://sphinxsearch.com/downloads/accept.php?file=sphinx-2.0.6-1.rhel6.x86_64.rpm yum install sphinx didn't seem to work. ...
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2answers
145 views

Unable to get forwarding to work

I am unable to get forwarding to work. Here's my postconf output: alias_database = hash:/etc/aliases alias_maps = hash:/etc/aliases command_directory = /usr/sbin config_directory = /etc/postfix ...
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1answer
615 views

Changing partition table, Centos 6.3 on Hetzner Server [closed]

I got from Hetzner a Server with Centos 6.3 + Plesk (2x3TB Software Raid 1), but the disk partition table is in MS-DOS format with no support for more than 2TB partitions. I want to change the ...
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1answer
1k views

yum not showing any updated package

I have a CentOS 6.3 machine. I'm running yum update but it doesn't show any updated package. I have already tried yum clean all and yum clean expire-cache. Any help will be really appreciated. ...
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1answer
98 views

How to create an error_log in each's vhosts httpdocs directory

Running a CentOS 6.4 server with Plesk 11 and virtual hosts for each client/domain. What I'm now trying to accomplish is to auto-create an error_log in each user's httpdocs folder in case of problems ...
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1answer
136 views

Building Tripwire RPM on CentOS6

I have been unable to locate a pre-built RPM for Tripwire on CentOS6. I have tried installing the one from CentOS5, as well as a couple of later Fedora RPMs, but all fail on a dependency on ...
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2answers
724 views

how to allow apache user to read /www root owned files

I wish to set my whole web architecture owned by root:root, and allow the apache user reading rights only. I don't know whether it is possible: chmod -R 744 makes it return a E403 from the browser, ...
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2answers
2k views

Changing memory allocator to Jemalloc Centos 6

After reading this blog post about the impact of memory allocators like jemalloc on highly threaded applications, I wanted to test things on a larger scale on some of our cluster of servers. We run ...
2
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1answer
3k views

Use apache as a HTTPS to HTTP Proxy

I'm trying to configure Apache on Centos 6 to proxy and reverse proxy traffic to an http server of a third party provider. The setup should work like this: https://mydomain.com/proxy/ proxies all ...
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1answer
151 views

mod_dav_svn not allowing authenticated users

I am running a CentOS 6.3 server along with a custom compile apache 2.4.3 (compile line below) and custom compiled subversion 1.7.8 (again, compile line below). I have mod_dav_svn set up, and it half ...
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0answers
151 views

Avahi persistance across direct connects / disconnects

I have a unique implementation of Avahi. My company makes a device that ships with a motherboard with dual on-board nics. One of those nics will be plugged into a customer network with either a ...
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1answer
202 views

Unable to access NTPD server except on loopback address Centos 6

I can only get results from: ntpq -p localhost or ntpq -p 127.0.0.1 If, from the same server, I try it as either the external IP address or domain name then it times out with no response. ntpq -p ...
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6answers
3k views

Installing Imagick PHP Extension on CentOS 6.3 64bit?

I am trying to configure and make install imagick extension, here is commands that i used wget http://pecl.php.net/get/imagick-3.0.1.tgz tar zxf imagick-3.0.1.tgz cd imagick-3.0.1 phpize ./configure ...
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1answer
318 views

How can Apache be installed in a OpenVZ container

I have OPenVZ running on CentOS and a precreated Ubuntu 10.04 OS template installed.The containers created have 2GB of disk space allocated.With this,can I have an Apache web server running within a ...
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3answers
5k views

Update from PHP 5.3 to 5.4 on CentOS 6.3 while keeping Plesk

I need to update the servers PHP version, but when I try to remove the old php to install the new PHP 5.4 via yum it wants to remove the whole plesk suite which I want to keep. I followed this guide ...
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2answers
12k views

Can't ping or reach external IP or domain on CentOS 6.3?

I have installed fresh CentOS 6.3 on my machine. Internet is not working at all. How ever I can ping my router and other computers connected on LAN. I've googled and searched various forums but all in ...
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237 views

CentOS 6 Binding IP Addresses

I can't seem to get IP binding to work properly. I have two files: ifcfg-eth0 and ifcfg-eth0:1 (tried 0:0, 0:2 and still not working). eth0 is supposed to be for IP 192.168.1.3 and eth0:1 is for ...
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2answers
2k views

HP DL380p Gen8 (p420i controller) I/O oddity on XFS partitions

On DL380p gen8 servers using XFS on top of LVM on top of raid 1+0 with 6 disks, an identical workload results in a ten-fold increase in disk writes on RHEL 6 compared to RHEL 5, making applications ...
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2answers
328 views

iptables TCP handshake on Centos 6.0

Here's my iptables script: #!/bin/sh service iptables stop iptables -F iptables -P INPUT DROP iptables -P OUTPUT ACCEPT iptables -P FORWARD DROP iptables -A INPUT -i lo -j ACCEPT iptables -A INPUT -p ...
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2answers
375 views

iptables config works in one Centos 6 server but not another one

This iptables script: #!/bin/sh service iptables stop iptables -F iptables -P INPUT DROP iptables -P OUTPUT ACCEPT iptables -P FORWARD DROP iptables -A INPUT -i lo -j ACCEPT iptables -A INPUT -p tcp ...
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0answers
877 views

How do I configure mod_mono to use ASP.NET 4?

I am running a VPS with Centos 6.3, with WHM 11.34.1 (build 11). I wish to use mod_mono to host an ASP.NET 4 application. (Background: I am rewriting a hobby PHP website in ASP.NET MVC 4, and want to ...
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1answer
471 views

CentOS with ISPConfig3 not resolving

I have recently setup a Centos 6.3 VPS running ISPConfig3 and Webmin with Nginx as the web server and BIND as the DNS server. This is the first time I've tinkered with ISPConfig, Webmin and Nginx. I ...
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2answers
469 views

CentOS stopped loading after I added something to /etc/rc.d/rc.local

I am very new in Linux (first day). I needed to add my program to the OS startup. I could not find a solution, so I tried to do something that could solve my issue. I added my line of text ...