Nagios - Plugin - Check SMTP service2011/06/17

	Enable plugin for monitor SMTP service.
[1]	Configure target host

[root@node01 ~]#

vi /etc/nagios/nrpe.cfg

# add at the last line: warn with 5 seconds of time out, critical with 10 seconds

command[check_smtp]=/usr/lib64/nagios/plugins/check_smtp -w 5 -c 10

[root@node01 ~]#

/etc/rc.d/init.d/nrpe reload

Reloading nrpe

[ OK ]

[2]	Configure Nagios server

[root@master ~]#

vi /etc/nagios/servers/node01.cfg

# add at the last line

define service{
    use                     generic-service
    host_name               node01
    service_description     SMTP
    check_command           check_nrpe!check_smtp
}

[root@master ~]#

/etc/rc.d/init.d/nagios reload

Running configuration check...done.
Reloading nagios configuration...done

[3]	Access to Nagios site and make sure SMTP is added for monitoring.

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