Nagios : Add Monitoring Target Host#2 (Ubuntu)
2016/06/08 |
It's possible to monitor other servers on the network
not only with simply Ping command but services on them.
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[1] | Install nrpe on a target host you'd like to monitor services on it. |
root@node01:~#
apt-get -y install nagios-nrpe-server
root@node01:~#
vi /etc/nagios/nrpe.cfg # line 81: add access permission (specify Nagios server) allowed_hosts=127.0.0.1 ,10.0.0.30
# line 221: comment out and add command[check_users]=/usr/lib/nagios/plugins/check_users -w 5 -c 10 command[check_load]=/usr/lib/nagios/plugins/check_load -w 15,10,5 -c 30,25,20 # command[check_hda1]=/usr/lib/nagios/plugins/check_disk -w 20% -c 10% -p /dev/hda1command[check_disk]=/usr/lib/nagios/plugins/check_disk -w 20% -c 10% -p / command[check_zombie_procs]=/usr/lib/nagios/plugins/check_procs -w 5 -c 10 -s Z command[check_total_procs]=/usr/lib/nagios/plugins/check_procs -w 150 -c 200 systemctl restart nagios-nrpe-server |
[2] | Configure Nagios server. |
root@dlp:~#
apt-get -y install nagios-nrpe-plugin
root@dlp:~#
vi /etc/nagios3/conf.d/node01.cfg # create new define host{ use generic-host host_name node01 alias node01 address 10.0.0.51 } define service{ use generic-service host_name node01 service_description PING check_command check_ping!100.0,20%!500.0,60% } # for free disk define service{ use generic-service host_name node01 service_description Root Partition check_command check_nrpe_1arg!check_disk } # for current users define service{ use generic-service host_name node01 service_description Current Users check_command check_nrpe_1arg!check_users } # for total processes define service{ use generic-service host_name node01 service_description Total Processes check_command check_nrpe_1arg!check_total_procs } # for current load define service{ use generic-service host_name node01 service_description Current Load check_command check_nrpe_1arg!check_load } systemctl restart nagios3 |
[3] | It's possible to view the status for a new server on the admin site. |