But this isn't a linux issue - this is by design. If you're deploying code without knowing how networking works, you're always going to have problems with this

But this isn't a linux issue - this is by design. If you're deploying code without knowing how networking works, you're always going to have problems with this like this. Perhaps my example was a little too simplified as AWS is my day-to-day cloud host but I find it hard to believe opening up ports on your VM and exposing it to the world and then placing the blame on docker is fair.