Whats the RPC endpoint mapper?
Every RPC service that uses IP based protocol uses a TCP or UDP port to communicate with its clients. However, in most cases, ports are assigned to RPC services dynamically. As a result, an RPC service that’s available on two different machines may use a different port on each. Likewise, an RPC service on a single machine may use a different port every time the machine is rebooted. There has to be a way for clients to find the right port for a particular RPC service on a particular machine. This is what the RPC endpoint mapper service does. Before starting a session with an RPC service, a client first consults the endpoint mapper service on the server to determine the port over which the service currently operates. It then begins communicating directly with the service. What’s wrong with the RPC endpoint mapper? If a query to the Windows NT 4.0 RPC endpoint mapper service contains a particular type of malformed data, the service will fail. Because the endpoint mapper runs as part of th
