Am 29.10.2018 um 20:03 schrieb Frank Thommen: > PostgreSQL is running in a docker container: > > $ docker ps > CONTAINER ID IMAGE COMMAND > CREATED STATUS PORTS NAMES > 6f11fc41d2f0 postgres "docker-entrypoint..." 4 > days ago Up 4 days 0.0.0.0:5432->5432/tcp postgres > $ > > > The various docker interfaces and virtual bridges are not assigned to > any specific zone. > > > Why is port 5432/tcp open? You will see it if you check the netfilter rules with: iptables -L -n -v --line -t filter iptables -L -n -v --line -t nat > frank Alexander