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Install Cacti (Network Monitoring) on RHEL/CentOS 7.x/6.x/5.x and Fedora 21-12

Cacti tool is an open source web based network monitoring and system monitoring graphing solution for IT business. Cacti enables a user to poll services at regular intervals to create graphs on resulting data using RRDtool. Generally, it is used to graph time-series data of metrics such as network bandwidth utilization, CPU load, running processes, disk space etc.