At our office, we have a local area network avec a purely internal DNS setup, on qui clients tous named as whatever.lan. I aussi have a VMware environment, et on le virtual-machine-only network, I name le virtual machines whatever.vm.
Actuellement, this network for le virtual machines n'est pas reachable depuis our local area network, mais we're setting up a production network to migrate these virtual machines to, qui will be reachable depuis le LAN. As a result, we're trying to settle on a convention for le domain suffix/TLD we apply to le guests on this nouveau network we're setting up, mais we ne peut pas come up avec a good one, given that .vm, .local et .lan tous have existing connotations in our environment.
So, quel est le best practice in this situation? Is there a list of TLDs ou domain names somewhere c'est safe to use for a purely internal network?