I inherited some systems recently. Let's call them tom.company.com and jerry.tom.company.com with IPs 220.127.116.11 and 18.104.22.168 respectively. This naming convention (allowing a name to be prepended to another name) in a network topology is wierd but since they exist I believe it's possible.
It is correct if I assume that since they have different IPs on the same subdomain, I can bring down tom.company.com without affecting jerry.tom.company.com ?
By bringing them down, I mean shutting down the server. The systems are BSD servers. I am only interested in the network topology portion.
Another way of asking my question would probably be, using BSD machines: If there exists server bar.company.com (not a DNS server, not a router) and we want to setup foo.bar.company.com, what has to be done? Can bar and foo.bar be in the same subnet?