Fix Docker DNS Cache behind VPN

It seems like Docker is caching the host's /etc/resolv.conf as it was when docker started up. So I restarted Docker after connecting to the VPN and now containers are able to resolve hosts that are in m company's DNS.

If you are developing on Ubuntu, you will need to use "--net=host" to work behind the VPN, such as this:

docker run --rm \
  -v ${PWD}:/home \
  -it \
  --net=host \
  mruckman/selenium_python:212301 /bin/bash