SNMP/Examples/Example 4:Monitoring with Nagios

From ImageStream Router Documentation

Overview

Nagios monitors target systems for system load, resource availability, and anything else which can be quantified numerically. Upon discovering a warning state, it sends notifications out via a highly configurable alert mechanism. Configuration is usually found in /etc/nagios/ with various portions of the configuration broken down into specific files. My reference mrtg configuration file configures Nagios to watch CPU temperature and load, BGP peer state, ssh availability, and ping time to the router. The Nagios Documentation covers initial setup and configuration in significantly more detail then covered here.

Services

define service{
       use                             local-service         ; Name of service template to use
       host_name                       gw01
       service_description             SSH service
       check_command			check_ssh
       }