anchor.diff:  #	module-init-tools \ operation not permitted inside docker
   RUN apt-get update -qq && apt-get -qqy install \
       	curl \
  +    	dnsmasq \
       	dnsutils \
       	inetutils-ping \
       	inetutils-traceroute \
       	iperf \
       	iptables \
  +    	lsof \
       	lua5.1 \
       	net-tools \
       	netcat \
  
positive.code: #
  # inspired by https://github.com/vimagick/dockerfiles/tree/master/pptpd
  #
  # `rm pptpd.postinst` is a workaround of `no bus` error with systemd 
  RUN apt-get update -qq && apt-get install -qqy \
        pptpd \
        || true \
  
negative.code: FROM phusion/baseimage:0.9.19
  MAINTAINER AcrossFW <dev@acrossfw.com>
  
  ENV DEBIAN_FRONTEND noninteractive
  
  #
  #
  # START HEADER - VPNet.io System Init
  