How does the host connect to the Linux host in the Docker container?

  docker, question

The host cannot ping Linux in the container. What can I do?

The Docker Engine uses Linux-specific kernel features, so to run it on
Windows we need to use a lightweight virtual machine (vm). You use the
Windows Docker client to control the virtualized Docker Engine to
build, run, and manage Docker containers.

The host you mentioned is win, the host of the virtual machine.