An Internet domain name server
The Berkeley Internet Name Domain (BIND) implements an
Internet name server for Unix operating systems. The BIND
consists of a server (or `daemon') called `named' and a
resolver library. A name server is a network service that
enables clients to name resources or objects and share this
information with other objects in the network. This in
effect is a distributed data base system for objects in a
computer network. The BIND server runs in the background,
servicing queries on a well known network port.