A. If you create a DNS server on your network but are not the main DNS server, i.e. your company has a central main DNS server, you will want to forward queries your DNS server cannot service to that DNS server.

This is because only certain servers in your network will have access to DNS servers outside your network (due to firewalls etc) and thus your (departmental?) DNS server cannot access the DNS servers higher up in the DNS hierarchy. To configure a forward perform the following:

  1. Start the DNS Management MMC snap-in (Start - Programs - Administrative Tools - DNS Management)
  2. Right click on the DNS server and select Properties
  3. Select the "Forwarders" tab
  4. Check the "Enable forwarder(s)" box
  5. Enter the IP address of the DNS server and click Add
  6. Click OK
  7. Close the DNS Management snap-in

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If you are missing the forwarder tab or its not available see Q. I am missing the forwarder and Root Hints tabs in DNS 5.0