If you like to change this, use -t option. Specify the Connection Timeoutīy default the check_ping command will do the connection time out (if it is unable to reach the destination host) after 10 seconds. In the following example, it sends 10 ICMP ECHO packets to the remote host before its output is measured. If you like to change this, use -p option. Specify the Number of ECHO Packetsīy default the check_ping command will send 5 ICMP ECHO packets.

Note: You should specify “%” after the second number in the threshold limit pair. The critical limit is 20ms or 5% packet loss. The warning limit is 10ms RTA or 2% packet-loss. In the following example, we are checking the ping output for 192.168.1.1 host. Percentage of packet loss, which is called pl.Round trip average, which is called as RTA.Threshold limit for check_ping should be passed as a threshold pair, which has two parts: You should also pass both warning and critical threshold limit. Use -H option to specify the hostname or the ip-address of the server for which you like to check the ping command output. If you don’t pass any arguments to the check_ping command, it will show all available options as shown below. This tutorial explains how you can use check_ping command with some basic examples. If you’ve installed Nagios from source, you’ll find all the default plugins under /usr/local/nagios/libexec directory. Check_ping command is a Nagios plugin that is used to check the ping output of a remote server.īased on the ping output, you can decide to set certain warning and critical threshold level, based on which Nagios can send notifications to you.

Nagios recheck devices