HowÂ do IÂ verify thatÂ name resolution is functioning properly and Domain Migration Administrator will work in my environment?
Domain Migration Administrator 6.x
Domain Migration Administrator 7.x
Verifying Name Resolution Services
The DNS and WINS name resolution services must be in place and properly functioning to successfully use Domain Migration Administrator. DNS service problems are one of the most common problems encountered when attempting to migrate from domain to domain. Rigorously checking and verifying your DNS services before starting your migration can prevent many problems and frustrations.
- Domain names must be unique. Domain Migration Administrator does not support migrating between two domains whose DNS or NetBIOS names are identical.
- For more information about installing and implementing DNS, see the following Microsoft article Q301192 at www.microsoft.com. You can also use the DNScmd utility to help identify and resolve DNS‑related issues.
To verify that DNS is working properly:
- Verify every domain controllerÂ IP address in the DNS forward and reverse lookup zones. Make sure there are no missing or unneeded host records.
- Verify that the secondary DNS server has replicated every change in both the forward and reverse lookup zones. Make sure there are no missing or unneeded records.
- On the primary DNS server, stop and restart the DNS Server service, and then stop and restart the DNS client service. Repeat this process for the secondary DNS server.
- Use the NSLOOKUP command at the primary and secondary DNS servers to verify that the host name and IP address of the computer where you will install Domain Migration Administrator are both resolved properly. For more information about the NSLOOKUP command, see the Microsoft WindowsÂ NT or WindowsÂ 2000 documentation.
- Use the NSLOOKUP command at the computer where you will install Domain Migration Administrator to verify that the primary and secondary DNS servers, the Global Catalog server, and all five FSMO role servers are properly resolved for both host name and IP address.
- Use the NSLOOKUP command on all other domain controllers involved in the migration to verify the primary and secondary DNS servers are properly resolved for both host name and IP address.
- For best results, switch your source PDC to register in and point to your WindowsÂ 2000 domain DNS and WINS servers.
This information can be found in Chapter 2 of the Domain Migration Administrator 7.0 User Guide.