Archive for the ‘CentOS’ Category

Installing Webmin on centOS

By Automater on April 23rd, 2010

I just installed the latest version of webmin on my CentOs 5 server. Webmin is a GUI control panel that lets you administer a Linux box.

Here is all you need to do to get it installed:

This will install some dependencies.
yum -y install perl-Net-SSLeay

Install the system:
cd /usr/src
wget http://prdownloads.sourceforge.net/webadmin/webmin-1.510-1.noarch.rpm
rpm -i webmin-1.510-1.noarch.rpm

Then you have to open the port

-A INPUT -p tcp -m tcp --dport 10000 -j ACCEPT

It should be added in the file just after similar lines which grant access to ports 80, 22 and so on.

Now restart your iptables.

/etc/init.d/iptables restart
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How to install memcached on CentOS

By Automater on April 18th, 2010

This is a step by step guide to installing memcached from source on CentOS. The version of CentOS that I am using is CentOS release 5.2 (Final); to find what version you are using:

  cat /etc/redhat-release

First, install the dependency libevent:

  cd /usr/local/src
  curl -O http://monkey.org/~provos/libevent-1.4.9-stable.tar.gz
  tar xzvf libevent-1.4.9-stable.tar.gz
  cd libevent-1.4.9-stable
  ./configure --prefix=/usr/local
  make
  make install

Next, install memcached:

  cd /usr/local/src
  curl -O http://www.danga.com/memcached/dist/memcached-1.2.6.tar.gz
  tar xzvf memcached-1.2.6.tar.gz
  cd memcached-1.2.6
  LDFLAGS='-Wl,--rpath /usr/local/lib' ./configure --prefix=/usr/local
  make
  make install

Verify that memcached starts:

  memcached -u root -d

If there were no errors, make sure it is running:

  ps aux | grep memcached

And finally, to stop memcached:

  pkill memcached

These instructions prevent the following errors:

  memcached: error while loading shared libraries: libevent-1.4.so.2:
  cannot open shared object file: No such file or directory
  configure: error: libevent is required
  If it's already installed, specify its path using --with-libevent=/dir/
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