I'm hoping someone can confirm my observations because I'm questioning my memory...
The title kind of says it all. While working rapidly on deploying a number of similar systems, it appeared that we were able to create systems with the same name and Active Directory allowed us to add them to the domain.
Problem was that one of the machines would no longer "see" the domain, saying it wasn't able to see it anymore.
I removed a machine from the domain and then re-added it with a variation to the name; am I misremembering something, or is it possible to add two machines to AD and effectively drop the other machine from the domain? Am I wrong in thinking this is something that AD shouldn't allow in the first place? I thought it would give a warning, as AD does when you try adding a username that already exists withing the AD structure.