Uh, how can I check what ports are open/forwarded on my computer (on Linux), and also how do I forward ports in OpenWRT (using LuCI) cause doing it the way I thought you're supposed to is maybe wrong? 🥲
I'm trying to set up a TES3MP server to play with my partner but they can't connect due to port issues 😔
Goo Truther 
@hazelnot if this is your first time doing this check that the host computer doesn't have a firewall enabled, blocking it. If so you can punch a hole for that port, or set your home network as a "trusted" zone.
Once you know that is done and applied, try running this command to show you active listening ports and you should see TES3 server `sudo netstat -tunlp` .
At that point, you just need to forward the port in Luci webUI. If you are asked to forward "from port x to y" put the server port in both boxes. If that goes through and doesn't seem to work, wait a few minutes and try again with "y" as a higher port number. Some ISPs ban public listening ports on "consumer" connections below ~20000.
Maybe that helps?
@thufie hm ok it shows up as UDP on port 25565, but it doesn't say "LISTEN" next to it?
@hazelnot can it accept local network connections?
@thufie hm, it can accept connections from the same computer, I haven't tried it from a different one :o
@hazelnot try that and run the command again and see what the output looks like, and whether you can connect. Never hurts to ensure that it actually works on your end first.
@thufie huh, thanks, I'll try this later/tomorrow!