I have a node where I am trying to run a docker container that exposes port 4444. When the container starts, it says Bind for 0.0.0.0:4444 failed: port is already allocated.
So I stopped all docker containers (I even ended up deleting all docker images.) Did a docker image prune and docker system prune -a.
The problem is that on this Linux host only, Docker is listening on port 4444 which causes a problem.
$ ps aux | grep 4444
root 4006719 8.3 0.2 1230764 78924 ? Ssl 09:34 0:00 /usr/bin/dockerd -H fd:// -H=tcp://0.0.0.0:4444
Why does it listen on tcp://0.0.0.0:4444 ? I need that port for Selenium!