Can anyone clarify in netmaker 0.18.5 after installed using quick script I see stun port listening on 0.0.0.0:3478, because in the docker-compose it's exposed like this "3478:3478/udp". My question is because it's configured behind caddy proxy, is this port needed as exposed in the docker-compose file or I can remove that? Thanks.

it needs to be open for udp hole punching

correction: you can remove it from the ports, and then in your docker-compose for netmaker, you can change the STUN_LIST variable to remove the server, and it will only use remote stun servers (e.g. ours, google's)

there isn't any advantage you can use any stun server