That being said I believe I need to do a domain migration to a brand new name space. Is it possible to do a clean install of W2K adv. server, install AD, DDNS, etc. as the root of a brand new tree (no 4.0 compatibility required) and bring it up in mixed mode? If so, could I then build some 4.0 BDC and enter them into the tree... or do I build a new 4.0 domain complete with BDCs, upgrade it's PDC, then bring over my users and groups and member servers of the TWC_NETOPS domain?
Could I then hope to write a script changing the workstations domain membership and have them be part of the new W2K mixed-mode domain? Or do I create the new NT domain and bring everything over as 4.0 then do my upgrade on the PDC? The NT resources that are affected by this include PeopleSoft accounting and HR, our entire revenue stream for ad sales, etc. Any pointer, hints, suggestions, job referrals in the event it doesn't work.
Melissa Bader, Sr. Network Operating Specialist
Build a Windows 2000 server as a Domain Controller. The default setting for Windows 2000 DCs is Mixed-Mode, so you will already have the support you need for the Windows NT 4.0 servers.
Test to make sure that it is fully operational. Make sure you test DNS, access to internal machines, access to Internet, and user account creation.
You will most likely need to establish a manual trust between this new domain and the existing NT 4.0 domain (use the Active Directory Domain and Trusts Snap-in).
Then start migrating the user accounts and machine accounts over to the new domain.
As you are able, decommission the old backup domain controllers (BDCs) and rebuild them from scratch as Win2k DCs adding them into the new domain.
Once all of the machines are Win2k, convert the AD to Native Mode.
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