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 ?
CrosStor NAS also provides Microsoft Backup Domain Controller (BDC) support for OEMs developing high-availability NAS configurations.
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.