stands for Primary Domain Control
ler. There can be only one PDC in a domain. The PDC holds the main SAM database
and provides the main logon authentication
for the network
. The PDC must be the first server
installed on a network. Almost all of the admin
work for a network is done at the PDC console
The PDC feeds the SAM database to the Backup Domain Controllers (BDCs) every five minutes. If the PDC were to crash, a BDC would be able to take over the network until the PDC was fixed and rebooted.
Servers cannot join a new domain without first reinstalling Windows NT.