[PDF] command definition has how many parameters in nagios

What is a command in Nagios?

Commands include service checks, service notifications, service event handlers, host checks, host notifications, and host event handlers. Command definitions for Nagios are defined in commands.cfg file. define command { command_name command_name command_line command_line } Command name ? This directive is used to identify the command.

How do I define a contact / host / service in Nagios?

The definitions of contact, host, and service is referenced by command name. Command line ? This directive is used to define what is executed by Nagios when the command is used for service or host checks, notifications, or event handlers. define command{ command_name check_ssh command_line /usr/lib/nagios/plugins/check_ssh ‘$HOSTADDRESS$’ }

What are custom object variables in Nagios?

Custom object variables are one of the lesser known features of Nagios. It allows you to define you own variables to use in your object definitions, this makes Nagios very flexible and very powerful. A good example is if each windows host had it’s own custom check_nt password.

What does 0 & 1 mean in Nagios?

This directive is used to determine whether or not the contact can submit external commands to Nagios from the CGIs. Values: 0 = don't allow contact to submit commands, 1 = allow contact to submit commands. This directive is used to determine whether or not status-related information about the contact is retained across program restarts.