Depends on what scale, and how systems are managed. I have seen <site code><host function><id> quite a bit for environments less than, say, 10,000 hosts work w

Depends on what scale, and how systems are managed. I have seen <site code><host function><id> quite a bit for environments less than, say, 10,000 hosts work well. I have also seen places that just do p/v/c-<id> for stuff too, where p=physical, v=virtual, c=container and id is just a hex representation of the host number in the config db. The big thing is having thoughtful DNS and load balancer setups for services. If you have a vpn, it should be vpn.domain.name or for documentation docs.domain.name.