This video also works on Server 2003. We so frequently install DNS with Active Directory, we forget that it is a full featured service on its own. This video is just one aspect of many features available from Windows DNS. This how-to video on Microsoft Windows Server 2008 domain name service (DNS) shows how to create a reverse lookup zone. Forward lookup zones resolve fully qualified domain names (FQDN) to IP Addresses. Reverse lookup zones translate IP Addresses into FQDNs. Some applications require this and sometimes this is used to prevent spoofing. It is also possible to automatically create the reverse lookup zone records (PTR) when you create the glue records (A and AAAA).