Windows 2008 DNS Service
"Domain Name System (DNS) is a system that is used in TCP/IP networks for naming computers and network services that is organized into a hierarchy of domains. DNS naming locates computers and services through user-friendly names. When a user enters a DNS name in an application, DNS services can resolve the name to other information that is associated with the name, such as an IP address. Windows Server® 2008 provides a number of enhancements to the DNS Server service that improve how DNS performs." - from Microsoft.com
Windows 2008 DNS Service is not that different from the previous versions of Windows DNS service present in Windows 2000 or Windows 2003. However we have a few new things introduced: IP version 6 (IPv6) support, Global single names, Global query block list, Support for read-only domain controllers (RODCs).
Now, before we can actually use the DNS service, we must add/install this Role to the Windows 2008 Server. We can do this from the Control Panel, or from the Server Management Interface.
From the Start menu, select "Control Panel" > "Administrative Tools" > "Server Manager". Click "Roles", choose "Add Roles" and select the DNS role. When the installation is finished you can start configuring your DNS service. You can find your new DNS management console in Control Panel / Administrative Tools.