How do I setup a Reverse Lookup Zone correctly and what should I call it? I have a very simple setup. Two servers behind a firewall at a colocation site and that's it. From the reading that I have done I think the zone would normally be called '192.168.1.x Subnet' but when I go through the 'New Zone' wizard I get '192.168.1.in-addr.arpa'. What is that? I've done this before in the past and I don't remember it being this complicated!