Install Cacti (Network Monitoring) on RHEL/CentOS 7.x/6.x/5.x and Fedora 21-12
http://www.tecmint.com/install-cacti-ne ... ora-17-12/
How to Enable EPEL Repository for RHEL/CentOS 7.x/6.x/5.x
http://www.tecmint.com/how-to-enable-ep ... entos-6-5/