To store information about RPC servers, interfaces, and objects, the
   NSI defines the following name service entries:

   server entry
             Stores binding information, interface identifiers, and
             object UUIDs for an RPC server.

   group     Corresponds to one or more RPC servers that offer a common
             RPC interface, type of RPC object, or both.

   profile   Defines search paths for looking in a name service
 	    database for a server that offers a particular RPC
    	    interface and object.

   Note that when the NSI is used with the Cell Directory Service, the
   name service entries are CDS object entries.