As far as i understood with the following rule:
ACCEPT tcp -- anywhere 172.17.0.4 tcp dpt:25565
ubuntu allows connection via port 25565 but only to 172.17.0.4, but i want it to be reachable from anywhere.
Ive tried something like
sudo iptables -A INPUT -p tcp --dport 25565 -j ACCEPT -d anywhere
but that doesn't work. Am I missing something? Maybe im totally wrong i don't know much about networking. My server i want to reach runs in a docker container if that makes any differences.