The two kinds of DirectConnect servers are the DCDirector server and the DirectConnect server.
DCDirector server – a server that performs an administrative role in DirectConnect Manager over other servers that you associate with it.
DirectConnect server – which can be “directed” by DCDirector server or not. Regardless, it can be managed using DirectConnect Manager, but at different levels depending on whether it is directed or not.
Whether a server is directed or nondirected has no impact on your applications. Both types of servers operate the same and require no specific connection changes to client applications. However, only one DirectConnect server on a machine can be designated as a DCDirector server, and the DCDirector and its associated servers all must reside on the same machine.