giving out my IP to trusted friends

Just in case you ever get back into it: We regularly see scanners scanning the internet with a million packets per second at work these days. That means it takes them 4000 seconds to scan the entire IPv4 Internet to check who responds on port 3784. So handing out the IP selectively won’t be enough.

I also learned that the hard way privately with my Minecraft server. It was listed on Shodan at some point, and I hadn’t put up a whitelist. Some shitty kids came and destroyed whatever they could find before finally putting up signs to mock me lol