The PDC hosts a read/write copy of the domain database, and the BDCs each house a read-only version of the same information, thus providing some measure of redundancy and infrastructure scalability.

Before making the move from NT to Windows Server 2003, it's important to understand some key differences between Active Directory and the NT 4 domain model as it pertains to server roles.

With incels.me, the domain was suspended by a registry, specifically in this case the .ME registry, which runs and maintains the database of all the top-level domains under its management.

Hyperspace, a Tel Aviv-based startup, says its custom cloud instances for database searches can dramatically speed up queries.