Introduction In the following guide we are going to automatically install the Pandora FMS agent in GNU/Linux in the supported distributions: CentOS 7 . CentOS 8 . Debian 9.x or later. Ubuntu 18.x or later. Raspbian 9.x . Raspberry OS 10.x . The agent will have the basic values of the operating system and will run a Speed Test every half hour and you will be ready to analyze the speed of internet link. What are we going to monitor in GNU/Linux? We are going to see the values that are important to take into account in the health of an operating system which are: Disk usage percentage CPU wait time CPU usage Network usage  Internet speed (Speed Test) The internet speed measurement is done using the GNU/Linux client on the page https:/ /www.speedtest.net/  a very reliable tool for this type of testing: