How to create a MS Configuration manager report that will Count All Computers for each Model
This guide will show you how to create a report in Microsoft System Center Configuration Manager 2012(R2) / Current branch 1702. In this example we will be creating a report which lists all system models and displays a count of each model.
How to Install SCOM Agent on an Un-trusted machine
In order for SCOM to communicate with an un-trusted machine like in a WorkGroup / DMZ / different forest, you will have to import a certificate so that SCOM will trust the foreign machine and will be able to communicate with it. The most common example is a SCOM Gateway. This topic is a bit complicated but if you use a guide like this you should be OK.
I added the files that you will need as well so you dont have to copy-paste it. Additional files: REQconfig.inf, certreq
First thing you will need is an inf file that contains the request.