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Question


A host that I monitor is not reachable via ping (ICMP), how can I use a host check on a different protocol, such as a TCP port?

Answer


To change the host check command to verify that the host is up, do the following:

  1. Navigate to the configuration page of the host
  2. Click "Advanced"
  3. Find the configuration option "check_command"
  4. Change to one of the predefined commands "check-host-alive-*"

You can also create your own port check using the plugin "check_tcp" or any other plugin of your choosing. More information on check commands can be found in the documentation in the chapter Commands