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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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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100 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
668 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
402 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
143 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
237 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
138 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
593 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
943 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
97 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
131 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
711 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
1k 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 ...
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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
149 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
149 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
200 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
303 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
11k 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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2answers
233 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
309 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
371 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
845 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
451 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
457 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 ...
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234 views

How do I save the iptables

I am new to Linux. In CentOS 6.3 I added this rule: iptables -I INPUT -p udp --dport 9494 -j ACCEPT Now I am trying to save it: /sbin/service iptables save It gives me: [FAILED] I tried to do: ...
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2answers
581 views

Running mono-based application on Centos Start

I am very new to Linux and I am currently switching my server from Windows to Centos 6.3. I have written a small UDP server. UDP server was written in C# and now I adopted it to work with Linux using ...
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1answer
4k views

Explain CentOS 5 vs. CentOS 6 - why are releases not sequential?

I was confused about why my new server had CentOS 5.9 installed on it, when CentOS 6.3 is available. But CentOS 5.9, it turns out, is actually the latest release. Why are 5.x versions being released ...
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1answer
754 views

What is the difference between nf_conntrack_max and nf_conntrack_expect_max?

I understand what nf_conntrack_max is, but what does nf_conntrack_expect_max actually do? I haven't been able to find an explanation on this anywhere.
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3answers
2k views

Where is the correct place to set net.netfilter.nf_conntrack_buckets?

I'm currently trying to set net.netfilter.nf_conntrack_buckets on boot. I initially assumed that this could be done through sysctl.conf, but net.netfilter.nf_conntrack_buckets (and other ...
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3answers
146 views

qemu-kvm start virt-viewer?

I recently installed qemu-kvm in Centos 6.3 x86_64. I want to start a VM only with an iso file, so i typed: qemu-kvm -hda file.iso -m 1024 but I only get VNC server running on 127.0.0.1:5901 ...
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1answer
170 views

Running an email server on a VPN client, wanting traffic passed through for smtp, pop3,imap etc from vpn server.

I have a home broadband network which I also run an email server. As my provider won't give me a fixed ip address, and most servers refuse to accept smtp mail from dynamic ip ranges, I felt the simple ...
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1answer
243 views

hiphop compilation fails on 90% [closed]

I've been working with hiphop on fresh centos-6.3 with gcc-4.6.2 and followed the following guide for hiphop compilation ...
1
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1answer
600 views

CPanel installation on Azure CentOS, gcc install fails

I am trying to install CPanel on a Centos VM on windows azure. Yum is failing to install gcc, which is required by the cpanel installer. I am getting this Error: Package: glibc-2.12-1.80.el6.i686 ...
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864 views

Installing CentOS 6.3 via USB, cannot partition hard disk drives

I'm currently attempting to install CentOS 6.3 on an IBM System x3650 M3 server using a 8GB USB boot drive that has been created using iso2usb for CentOS/RedHat. During the installation process, when ...
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73 views

How to portforward with iptables?

I currently installed openvpn on CentOS 6 64bit and everything is working fine but I want to portforward a client "user" so they can use that port. Here is what I thought it should work iptables -t ...
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2answers
12k views

ipmitool - can't find /dev/ipmi0 or /dev/ipmidev/0

Based on a previous question, I installed ipmitool (yum install ipmitool). Even after a reboot, though, i get the following error when trying to run ipmitool power status: Could not open device at ...
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3answers
203 views

Centos - server iso [closed]

I have downloaded the centos (6) minimal version and am trying to install on a virtual box. When i fire up the installation, it starts a gui insaller. I am trying to have a server only iso and this ...
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3answers
821 views

SSH does not use PublicKey on CentOS 6.3

I have a CentOS 6.3 server and with a user named ako. I am running Kubuntu 12.10 as my client and I have copied my public key to the server using the ssh-copy-id command. I have updated the ...
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1answer
784 views

updates-testing repo for CentOS 6?

What is the equivalent CentOS 6 repo for the updates-testing repo of RHEL/Fedora? I am trying to follow the node.js installation instructions here and am having trouble figuring out what repo to add ...
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1answer
469 views

Running thin server as a init.d script on CentOS 6.3

I followed the Slicehost tutorial here and was able to get thin installed in init.d to be able to start at boot. I also created the required configuration file. When running thin from the command ...
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1answer
508 views

Mapping User and Group Ownership through LDAP

I am installing smb 3.5 on a CentOS 6.2 host using smbldap-tools. I've previously installed a similar configuration on RHEL4 using smb 3.0 but CentOS now uses nss-pam-ldapd and nslcd instead of ...
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4answers
2k views

Issue with starting apache on CentOS 6.3

I have some box that was handed to me and I can't even start the basic apache server. It's installed via yum (I've uninstalled and installed it) and when I start the service (service httpd start) its ...