I have inherited a situation where I have 4 branch offices. Each is set up as its own network and has its own server. The domains are all NT domain names that are the same name (abc). Later they found that (abc.com) was already taken as a FQDN and consequently they registered (xyz.com). I am replacing the servers and installing win2k server on them. In planning for the domain naming structure for AD, what would be the best DNS naming scheme for each office. Should they all be in one domain, or should each office be a separate domain. ie, all offices using xyz.com for a domain vs. north.xyz.com, south.xyz.com, east.xyz.com, west.xyz.com. These are small offices of 30-40 users each. I would like to connect them via VPN eventually. I have a DSL in in each office and externally hosted email and web page.