I have two servers with Centos OS 5.5 64bits and Cpanel installed. The hardware configuration is similar and they are located in two different datacenters.
I want to build a backup, mirroring, failover, redundancy between this two servers.
The main objective is if the server 1 fails to respond, the server 2, with exactly the same content and configuration take care of the mess. When the server 1 start to respond, it assumes the traffic again.