A Location Service Daemon (LSD) is an administrative server naming service that listens at a fixed port and keeps track of the namespaces in use across the network. It processes requests to locate persistent object references and redirects clients to the appropriate application server.
The administrative server has two naming services: LSD and Java Naming and Directory Interface (JNDI). LSD uses its own Object Request Broker (ORB) and processes persistent object references. By default, LSD listens on port 9000. JNDI is a persistent naming service provided through the CORBA CosNaming API implemented as EJBs. The JNDI namespace is kept locally by the administrative server.
The tasks the LSD performs depend on the specific naming service used by an EJB client.