Nagios : Add Target Host (Ping)2026/06/10

	It's possible to monitor other servers on the network.
[1]	For example, add a Host as monitoring target with simply Ping command.

root@dlp:~#

vi /etc/nagios4/nagios.cfg

# line 62 : uncomment

cfg_dir=/etc/nagios4/servers

root@dlp:~#

mkdir /etc/nagios4/servers

root@dlp:~#

chgrp nagios /etc/nagios4/servers

root@dlp:~#

chmod 750 /etc/nagios4/servers

root@dlp:~#

vi /etc/nagios4/servers/node01.cfg

# create new

define host {
    use                     linux-server
    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%
}

root@dlp:~#

systemctl reload nagios4

[2]	It's possible to see the status for a new server on the admin site.

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