anchor.diff:  
   
   #
  -# OpenVPN
  +# TODO:
   #
  -#
  +#   OpenVPN
  +#     https://github.com/gaomd/docker-openvpn-static
  +#   L2TP
  +#   Tinc
  +#   Avahi
   #
   
   
  
positive.code: ENV ADMIN_PASS vpnet.io
  # TODO
  ENV USERS "user:pass"
  ENV HOSTNAME docker.vpnet.io
  ENV EMAIL dev@acrossfw.com
  
  ENV DNS 8.8.8.8
  
negative.code: RUN apt-get update -qq && apt-get -qqy install \
      	apt-utils \
      	curl \
      	inetutils-ping \
      	inetutils-traceroute \
      	iperf \
      	iptables \
      	iptraf \
      	net-tools \
      	netcat \
      	screen \
      	shellcheck \
      	tcpdump \
      	tinc
  