Be careful with Docker ( crypto miner )!
https://www.reddit.com/r/docker/comments/18m1k0b/holy_sht_a_...
Note that ports which are not bound to the host (i.e., -p 5432:5432 instead of -p 127.0.0.1:5432:5432) will be accessible from the outside. This also applies if you configured UFW to block this specific port, as Docker manages its own iptables rules. https://docs.docker.com/engine/network/packet-filtering-fire...