Sometimes I have scripts that automatically assign ports starting from 30000. How would that work? Would I have to bind to port 0 multiple times until I randomly get a port in that range?

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0bytes a day ago | parent | next [-]

I’m not exactly sure if that’s the question, but the range can be set. Here’s the Linux solution: https://tldp.org/LDP/solrhe/Securing-Optimizing-Linux-RH-Edi... FreeBSD has net.inet.ip.portrange

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99harry a day ago | parent [-]

That might not quite fit my use case. My AI-generated scripts probably won't modify system-level configuration files to change the port range

	▲	Zambyte a day ago \| parent [-]
		... do you not have a say in the matter?

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_flux a day ago | parent | prev [-]

I'm not quite sure what a script assigning ports actually does, but if I need an app to bind a port in some port range, I just start binding ports starting from 30000 until it succeeds.

If it's in a script then that might be difficult, but a racy approximation could be to loop e.g. listening socat with different ports for finding the free port. (Or maybe: parse output of ss.) But if the port use is separate from the port binding, then it might still be busy once the time to rebind it comes.