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5.2. System Ports
IdM uses a number of ports to communicate with its services. IdM clients require the same ports as IdM servers, except for port 7389. You do not have to keep port 7389 open and available for clients in most usual deployments.
For the list of ports required by IdM and for information on how to make sure they are available, see Section 2.4.5, “System Ports”.