Passive Checks · Documentation — NCPA - Nagios All three of the hosts are set up in Nagios Core, and so are their services. Process Checks - Nagios Support check_command check_snmp!-C public -o sysUpTime.0. If the check can be run (e.g. Nagios nrpe with argument passing - Amit Mund However: new versions of the plugins support using an extra config ("ini") file. nagios-plugins/services.cfg at master - GitHub If the check can be run (e.g. Nagios can tell what the status of the service is by reading the exit code of the check. 1 Answer1. Quick HOW TO STEPS: On monitored Host: 1. Monitor For Expiring SSL/TLS Certs with Nagios - Linux Included Edit NRPE configuration file and add the following entry to check disk /dev/sda1. . It would be a good idea to keep your plugins in same directory as other Nagios plugins ( /usr/lib/nagios/plugins/ for example). This is a plugin for Nagios wich you can use to check if a linux service is running. This is most . Nagios' check_ssh (of course) keeps marking the process as critical since it can't connect on that port. Passive Checks with Nagios » ADMIN Magazine Returning Nagios Check Results. define service { use generic-service host_name server02 service_description DNS check_command check_dns!172.18.100.101 } . Its open source, customizable , easy to use and highly efficient. "check_mysql_health" Service Definition # Open the "mysqlmonitoring.cfg" file we had created earlier using the "vi" editor. And of course it should work on any distribution based on them. Add the following service-definition (typically # in etc/services.cfg): # # define service { # host_name nagios # service_description disk-usage # check_command disk_by_snmp!public!1!20!10 # use generic-service # normal_check_interval 10 # } # # Replace the 'use' statement with whatever template you would like to use, # or fill up the .