I got some question regarding Active Directory trust model and planning for my current company situation.
At the moment I only have one single forest AD domain (let say ParentCompany.com) with the Domain and Forest functionality Windows Server 2003. The main domain controller FSMO role holder is in the Data Center spread across three different VMs running on Windows Server 2008 R2.
Head Office: City A, Location A
Data Center: City A. Location B
Recently, the parent company acquiring some other smaller company in multiple different geographical locations. But this company is running its own Active Directory domain one per city or office like the following:
Office: City A, Location A
Office: City B, Location B
Office: City C, Location C
Office: City X, Location X
So in this case what are the benefits or advantage in creating Active Directory trust for each of the new Company AD above to the main head office ParentCompany.com ?
If you have any other good suggestion in creating the AD setup than above, please share it here.