Nagios : Add Monitoring Target Item

Nagios : Add Monitoring Target Item 2015/06/18

	It's possible to add monitoring Target Items. There are many RPM packages for them or it's possible to create a plugin by yourself. And also there are many plugins provided by comunity below. ⇒ http://exchange.nagios.org/
[1]	Many plugins are provided with RPM packages like follows.

# use EPEL [root@dlp ~]#  yum --enablerepo=epel search nagios-plugins-  nagios-plugins-all.x86_64 : Nagios Plugins - All plugins nagios-plugins-apt.x86_64 : Nagios Plugin - check_apt nagios-plugins-bdii.x86_64 : Nagios Plugin - check_bdii_entries nagios-plugins-bonding.x86_64 : Nagios plugin to monitor Linux bonding interfaces nagios-plugins-breeze.x86_64 : Nagios Plugin - check_breeze ... ... nagios-plugins-ups.x86_64 : Nagios Plugin - check_ups nagios-plugins-users.x86_64 : Nagios Plugin - check_users nagios-plugins-wave.x86_64 : Nagios Plugin - check_wave

[2]	For example, add check_ntp plugin to monitor time difference between the system and NTP server.

[root@dlp ~]#  yum --enablerepo=epel -y install nagios-plugins-ntp [root@dlp ~]#  vi /etc/nagios/objects/commands.cfg # add follows to the end define command{ command_name check_ntp_time command_line $USER1$/check_ntp_time -H $ARG1$ -w $ARG2$ -c $ARG3$ } [root@dlp ~]#  vi /etc/nagios/objects/localhost.cfg # add follows to the end ( Warning if it has 1 sec time difference, Critical if it has 2 sec ) define service{ use local-service host_name localhost service_description NTP_TIME check_command check_ntp_time!ntp1.jst.mfeed.ad.jp!1!2 notifications_enabled 1 } [root@dlp ~]#  systemctl restart nagios

[3]	It's possible to view the status for a new plugin on the admin site.