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.– Andy GriffithsNov 3, 2022 at 9:01
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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
- Wikipedia has an overview of an Apple event
- The Apple Events Programming Guide explains everything there is to know about Apple events, and page 63 begins a section on sending remote Apple events
- You can enable or disable remote Apple events from Sharing settings: Allow remote Apple events on Mac - macOS User Guide
