A couple of our servers have Oracle maintenance licenses. Our hardware vendor asked there was internet connection in the server room. Our policy is that all machines in that room is isolated from the internet for security reasons. But the maintenance guy asked "then how are we going to be able to do maintenance work on your servers?"
My question is, do our servers need internet connection in order for the maintenance to be carried out like a license verification system. Or can he do it offline? Isn't it a risk in itself if there was an internet connection to our production server?