Network Monitoring with Nagios

Sample services.cfg

define service {
        name                            generic-service
        active_checks_enabled           1
        passive_checks_enabled          1
        parallelize_check               1
        obsess_over_service             1
        notifications_enabled           1
        event_handler_enabled           1
        flap_detection_enabled          1
        is_volatile                     0
        check_period                    24x7
        max_check_attempts              4
        normal_check_interval           5
        retry_check_interval            1
        notification_interval           960
        notification_period             24x7
        register                        0
}

define service {
  use                            generic-service
  host_name                      monitor, filesrv1, dbsrv1
  service_description            PING
  check_command                  check_ping!100.0,20%!500.0,60%
  contact_groups                 serveradmins
}

define service {
  use                            generic-service
  host_name                      itswitch,salesswitch,accountswitch,firewall,wanrouter
  service_description            PING
  check_command                  check_ping!100.0,20%!500.0,60%
  contact_groups                 netengineers
}

Like our hosts.cfg, the first definition in this file is really a template. The generic-service template defines all the directives that will be shared by our services. Our second service definition actually defines multiple services. The service definition specifies multiple hosts in the host_name directive, meaning this service will belong on all of these hosts.

Sample escalations.cfg

define hostescalation { hostgroup_name servers, networking contact_groups managers first_notification 5 last_notification 0 notification_interval 60 escalation_period 24x7 escalation_options d,r } define serviceescalation { hostgroup_name servers, networking contact_groups managers service_description PING first_notification 5 last_notification 0 notification_interval ...