Backup Domain Controller


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Backup Domain Controller

(networking)
(BDC) A server in a network of Microsoft Windows computers that maintains a copy of the SAM database and handles access requests that the Primary Domain Controller (PDC) doesn't respond to. There may be zero or more BDCs in a network. They increase reliability and reduce load on the PDC.
References in periodicals archive ?
The Remote Backup Domain Controller means that, should the primary controller at the client's office fail, services are instantly available through the Remote Backup Domain Controller.
FacetWin's Auto-User Creation will automatically create a new user account on a UNIX system, based on proper authentication from the NT PDC, or backup domain controller (BDC).
These include SQL database servers, servers for the primary and backup domain controllers, and Internet Information Server (IIS) 4.
Each SciNet CD-Server fully integrates into NetWare NDS environments, and can synchronize both users and passwords with NT primary and backup domain controllers.