Docker networking

There are four types of Docker networking: none, bridge, host, and overlay.

Bridge is the default network mode in Docker. Containers in the same bridge network can communicate with each other. Shortly, it creates a virtual network, in which containers are assigned IP addresses and can cummunicate using them, while anything outside of that network cannot reach any of those addresses. In the Host network, the container uses the host’s network stack. This means that the container shares your machine’s IP address and network interfaces.

Overlay mode allows you to create a virtual network that spans multiple Docker hosts. Containers in different hosts can communicate with each other as if they are on the same host. It’s useful when running Docker Swarm.

Using the Docker command line, you are able to create a custom network of any of those types.

None network

A none network in Docker is a special type of network mode that disables all...