This CentOS tutorial will show you How to add EPEL Repository to CentOS 6.4. EPEL Repository contains various packages which compatible with CentOS Linux. I highly recomend you to install or add this EPEL Repository for CentOS users. Its pretty easy to do it.
How to add EPEL Repository to CentOS 6.4
To install it, simply download this rpm package on CentOS 6.4.
Press OK to open it using Package Installer. Select Install on the next window and type your root password to start the installation. To check if it installed correctly, simply run this command:
You should see EPEL repository listed there