CentOS
CentOS is an Enterprise-class Linux Distribution derived from sources freely provided to the public by a prominent North American Enterprise Linux vendor (Red Hat). CentOS conforms fully with the upstream vendors redistribution policy and aims to be 100% binary compatible. For more information on CentOS, you can visit their website at www.centos.org.
CentOS Version
This documentation was written for CentOS 5.2 but may be usefull with other versions.
Let's begin with how to install CentOS.