{"id":1257,"date":"2020-04-19T23:31:07","date_gmt":"2020-04-19T23:31:07","guid":{"rendered":"\/blog\/?p=1257"},"modified":"2020-04-20T02:21:11","modified_gmt":"2020-04-20T02:21:11","slug":"nagios-event-handlers","status":"publish","type":"post","link":"\/blog\/index.php\/nagios-event-handlers\/","title":{"rendered":"Nagios Event Handlers"},"content":{"rendered":"

Restarting-Linux-Services-With-NRPE<\/a>
\nhttps:\/\/assets.nagios.com\/downloads\/nagiosxi\/docs\/Restarting-Linux-Services-With-NRPE.pdf<\/p>\n

At each monitored server
\n————————
\nAdd this line to \/usr\/local\/nagios\/etc\/nrpe.cfg :
\ncommand[service_restart]=sudo service $ARG1$ restart 2>&1<\/p>\n

And give nagios permissions to execute service
\necho “nagios ALL = NOPASSWD: `which service`” > \/etc\/sudoers.d\/nagios<\/p>\n

At the Nagios XI server
\n———————–
\n– Test with
\n\/usr\/local\/nagios\/libexec\/check_nrpe -H 10.25.13.34 -c service_restart -a apache2
\n– add these contents to \/usr\/local\/nagios\/libexec\/service_restart.bash
\n#!\/bin\/bash
\ncase “$1” in
\nOK)
\n;;
\nWARNING)
\n;;
\nUNKNOWN)
\n;;
\nCRITICAL)
\n\/usr\/local\/nagios\/libexec\/check_nrpe -H “$2” -c service_restart -a “$3”
\n;;
\nesac
\nexit 0<\/p>\n

– set permissions
\nchown apache:nagios \/usr\/local\/nagios\/libexec\/service_restart.bash
\nchmod 775 \/usr\/local\/nagios\/libexec\/service_restart.bash<\/p>\n

-test
\n\/usr\/local\/nagios\/libexec\/service_restart.sh CRITICAL 10.25.13.34 apache2<\/p>\n

– Create a “command” in the core config mannager with this command line:
\n$USER1$\/service_restart.sh $SERVICESTATE$ $HOSTADDRESS$ $_SERVICESERVICE$
\nAlso select “misc_command” from command type<\/p>\n

– Update a service adding the event handler<\/p>\n

– in the misc settings add a “free variable”
\n_SERVICE apache2<\/p>\n

Read:
\nhttps:\/\/assets.nagios.com\/downloads\/nagioscore\/docs\/nagioscore\/3\/en\/eventhandlers.html#example
\nhttp:\/\/www.techadre.com\/content\/nagios-event-handler-restart-remote-service<\/p>\n

Nagios event handlers for NRPE<\/a><\/p><\/blockquote>\n