This will not calculate the swap memory in results. cd /usr/lib/nagios/plugins/Įdit NRPE configuration file and add a command to check memory uses like below. On CentOS/RHEL 64-bit systems this local will be /usr/lib64/nagios/plugins. Download check_mem.pl using the following command and copy it to the Nagios plugins directory. You can download the check_mem.pl and configure with NRPE daemon. There is also a related script for showing the total memory usage for each user: showPerUserMem. Monitor Memory UsesĪ Nagios plugin is available to monitor memory uses on Linux systems. The first column represents the user name, the second column the aggregated CPU usage and the third column the normalized CPU use according to the number of CPU cores. The requests go to the remote host and the NRPE server checks for the command defined as check_load and execute it. Let’s verify the configuration by running the check_nrpe command from the Nagios serverĪs per the above screenshot, the Nagios server sent NRPE requests to the defined host (192.168.1.15) to execute command check_load and send results back.

Command =/ usr/ lib/ nagios/ plugins/ check_load - w 15, 10, 5 - c 30, 25, 20

Check memory and cpu usage linux