Icinga2

"julian.bersnak" <[email protected]> Tue, 14 Feb 2017 10:19:44 +0100
Newsgroups gmane.network.nagios.plugins
Message-ID <95B35506-F2A5-4994-96DE-472A426E2AD3__20014.9356540807$1487608889$gmane$org@kshp.ch>
Hello 
I have installed Icinga2 and I know how I can add more hosts.
The Problem is, that this hosts oney get check for Ping and Process. 
Can you say my how I can add some additional Commands to the host?
For Switches which Port is up/down, speed of the port. 
For Server free disk space. Users online…

Thanks for your Help.
Julian Bersnak