Now you could install DNS on one of the Windows NT 4.0 servers and then upgrade. Alternative, you could install a new Windows 2000 server (you can use a workstation system if you want as this will be temporary). Once you configure the Windows 2000 server with DNS, then configure the NT 4.0 server you are about to upgrade to point to the Windows 2000 server. Then follow these steps:
- Upgrade the Windows NT 4.0 server to Windows 2000
- Install DNS on the upgraded server
- Configure the forwarder on the upgraded server
- Point the upgraded server to itself as the DNS server
- Retire the Workstation or temporary DNS server
- Point the other Windows NT 4.0 server to the Windows 2000 DNS server
- Upgrade the remaining Windows NT 4.0 BDCs to Windows 2000
- Switch to Native Mode
- Change the DHCP scope (assuming that you are using DHCP ) so that all of the workstations in your enterprise point to the Windows 2000 DNS server.
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