Downloading and extracting Cacti

Go to http://www.cacti.net and download the latest version of Cacti. In the top-left corner, under Downloads, click on the Cacti link. You can download the Cacti files from there. Please also make a note of the latest stable version. You will need this information in the following steps. For simplicity, we're assuming that your server has an internet connection.

Cacti version variable CACTIVERSION: 

As the Cacti version may be different, we will use the CACTIVERSION or NEWCACTIVERSION variables during the different installation and upgrade steps to refer to the Cacti version. Check the current version on the Cacti website and change these variables accordingly.