I have a windows 2000 domain with Active directory installed. The domain (rites.com) is installed in Location A. Recently I installed a new child domain (sales.rites.com) in the existing tree at a new Location B. Both the locations are separated by a WAN link (T1). I have created an IPSEC tunnel between the two offices for connectivity. While installing the child domain I created the first DC (A1WSITE2-1) as a child domain to the existing root domain rites.com. Right now the DC (A1WSITE1-2) is pointing to the DNS from the root domain (both preferred and secondary). Do I need to install a local DNS server in location B for sales.rites.com? Can I point all my servers to the DNS server in the root domain? Is it a recommended setting.