On your DHCP Server
You need this VB Script in the scripts directory of NSClient++ on the DHCP Server:
check_dhcp_scope.vbs
Change the .doc extension to .vbs or hit the link to Nagios exchange below for the original file.
Now in nsc.ini — Enable NRPEListener.dll and CheckExternalScripts.dll
Also in nsc.ini add the following in the External Scripts Section:
check_dhcp_scope=cscript.exe //T:30 //NoLogo scripts\check_dhcp_scope.vbs
Restart the NSClient++ on the DHCP server.
On your Nagios Server
In nagios/etc/objects/commands.cfg:
# 'check_nrpe' command definition
define command{
command_name check_nrpe
command_line $USER1$/check_nrpe -H $HOSTADDRESS$ -p 5666 -c $ARG1$
}
In nagios/etc/servers/.cfg
# Create a service for monitoring the DHCP Client scopes
# Change the host_name to match the name of the host you defined above
define service{
use generic-service
host_name
service_description DHCP Scopes
check_command check_nrpe!check_dhcp_scope
}
Output
Sources:
http://blog.phobius.net/how-to-use-powershell-scripts-with-nrpe-to-monitor-a-windows-host/
http://exchange.nagios.org/directory/Plugins/Network-Protocols/DHCP-and-BOOTP/Check-DHCP-Server-Scope/details
