What does --net=host option in Docker command really do?

Question

I\'m a little bit beginner to Docker. I couldn\'t find any clear description of what this option does in docker run command in deep and bit confused about it.

Can we

Answer 1

1. you can create your own new network like --net="anyname"
2. this is done to isolate the services from different container.
3. suppose the same service are running in different containers, but the port mapping remains same, the first container starts well , but the same service from second container will fail. so to avoid this, either change the port mappings or create a network.