There seems to be for lack of better works a difference of opinion as to the best practice for DNS settings on a DC. We have a large corp many sites one domain, lots of DCs. My thinking is to set up each DC as a DNS server and forward the requests out to my Corp DCs - I think this will give us faster results internally - we have programs that are internal, over the WAN to our Corp office and out to the internet. So I think DC01 should point to DC02 and then itself and then forward the request to The corp DC. And DC02 should point to DC01 then itself and then forward the request to my Corp server. Can someone please offer an opinion - Of course you set up zone also - but I'm just talking about the server requests.