Operation of the

Client programs, such as a console or an adapter, use the
to determine where
s are running. When a
starts, it registers the hostname of the machine it is running on, as well as the TCP port it is listening to, with the
. Thereafter, clients retrieve this information from the
so that they can communicate with the
. Chapter 7, “Operation of the Broker,” describes the functions of the
, provides procedures for viewing the
’s registry, and explains how to change the
’s environment variables.