The portmapper

The portmapper

• RPC server programs register with the portmapper
  • there are many more RPC programs than TCP or UDP ports; the portmapper maps between them
  • server programs register with the portmapper
  • advertises the program and version numbers
    • but not the procedures
  • each time a client calls an RPC program, it gets the TCP or UDP port the program is waiting on from the portmapper

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