I want to use the port 3031 for our application but it is in use by something with PID 1. It is being opened with launchd and I just reset my laptop so it must be an apple process.

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  • What is the actual question you wish to ask? All so far is just a statement of what you have found. For example you could ask how to find out what 3031 is being used for, or how to find a reliably free port, or how to make service discovery a dynamic process using Zeroconf or similar. Nov 3, 2022 at 9:01

1 Answer 1

Port TCP or UDP Service or protocol name RFC Service name Used by
3031 TCP/UDP Remote AppleEvents eppc Program Linking, Remote Apple Events

TCP and UDP ports used by Apple software products - Apple Support

For more info on Apple events

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