#3 won't work, because the server doesn't actually listen on 0.0.0.0 or ::. It binds to the loopback interface, meaning that even if someone types your IP in manually they won't be able to connect.
#3 won't work, because the server doesn't actually listen on 0.0.0.0 or ::. It binds to the loopback interface, meaning that even if someone types your IP in manually they won't be able to connect.