How do I...Install and configure a DNS server in Windows Server 2008?

Configure a Pointer (PTR)record.

A Pointer (PTR) record creates the appropriate entry in the reverse lookup zone for reverse queries. As you saw, you have the option of creating a PTR record when creating a Host record. If you did not choose to create your PTR record at that time, you can do it at any point.

To create a PTR record:
  1. Select DNS from the Administrative Tools folder to open the DNS console.
  2. Choose the reverse lookup zone where you want your PTR record created.
  3. From the Action menu, select New Pointer.
  4. Enter the Host IP Number and Host Name.
  5. Click OK.