I am in the process of setting up exchange 2013 SP1 and migrating a network to a virtualized environment. Hyper-V will be the virtualized environment. The operating system will be server 2012 r2. There will be an instance running hyper-v only on the server and then two virtual servers - one for users /profiles, AD DS,DNS,DHCP, Remote Access etc. and one for exchange 2013 sp1. It is a small network with less than 20 users
My challenge is the internal domain name being used is a .com, but is not owned or registered to the company. It has never been an issue before because nothing went beyond the forest perimeter.
Is there a method to change the forest and internal domain names that will ensure all of the trusts for the network users is protected? Or would it be better to rebuild the entire system from scratch and choose appropriate internal domain and forest names?