Cacti is an open source web based network and system monitoring solution with a completely PHP driven frontend. It is used by IT businesses and stores all of the necessary information about bandwidth, hard disk usage, CPU usage, load average, RAM statistics etc in a MySQL database. Cacti creates graphs and populates them with data. It offers SNMP support, 3rd party templates and plugins and has built in user authentications and user permission features.
This blog article will guide you through the installation of Cacti on a Centos VPS.