I am just looking for a bit of guidance/best practice of implementing the MDM in a live working environment.

We have the both the Service Desk Plus software, OpManager and AppManager running on the 1 server within our domain. My question is, should i install the MDM on the same server?

Or would it be better practice to build a new server, put it in the DMZ and install MDM on this, seen as devices will need to contact the MDM server from the outside world?

Are there any potential issues with doing the last option?