How do I change Domain Names?

NT stores both the textual name and the Security ID (SID) associated with the name, when you change the Domain name you only change the textual part and NOT the SID.

All users should log off before starting the Domain Name change

Break all trust relationships with other Domains

If possible all BDC's should have the domain name changed and want to reboot. Say reboot later, and shutdown the machine and power it off.

On the PDC run control panel, and change the Domain Name through Network Panel. The computer will prompt for a reboot and select "Reboot Now".

Once the PDC is up let it stabilize for a few minutes then bring up each BDC with a minute gap, so it can validate with the PDC

Re-create trust relationships with other Domains

Move all clients to the new Domain, for Workstation see next FAQ.