Forward lookup zone not updating
Technically, even though Active Directory used to be able to use other DNS services to operate, using Windows Server's built-in DNS services to provide the best overall integration capabilities and results in fewer issues.
If you're running an older version of Windows DNS services or some other DNS service on your network and you want to deploy Active Directory, migrating to Windows Server 2008's DNS services should be the first step in your plans.
Once you verify that the new standard secondary zone is functioning properly, you can decommission the existing primary zone server if you like.
You will now need to quickly change the secondary zone into a primary zone.
Figure A gives you a look at the Name Servers tab on an Active Directory-integrated zone on a server running Windows Server 2008.
The File Name value must be the exact file name of the standard primary zone, just the same as when you are creating the zone via the DNS console.Afterwards, on the target server, right-click the new secondary zone and select Transfer From Master (Figure E).