anchor.diff:      	screen \
       	shellcheck \
       	tcpdump \
  -    	tinc
  +    	tinc \
  +      \
  +    && apt-get clean && rm -rf /var/lib/apt/lists/* /tmp/* /var/tmp/*
   
   ENV BATS_VERSION 0.4.0
   RUN curl -s -o "/tmp/v${BATS_VERSION}.tar.gz" -L \
  
positive.code: 	  && echo "deb http://shadowsocks.org/debian wheezy main" > /etc/apt/sources.list.d/shadowsocks.list \
  	  && apt-get update -qq && apt-get install -qqy \
        shadowsocks-libev \
      && ln -s ${ACROSSFW_HOME}/service/shadowsocks /service/shadowsocks
  ENV SHADOWSOCKS_ENCRYPT_METHOD aes-256-cfb
  EXPOSE 8388/tcp 8388/udp
  
  
negative.code: RUN apt-get update -qq && apt-get install -qqy \
        apache2-utils \
        squid \
      && ln -s ${ACROSSFW_HOME}/service/squid /service/squid \
      \
      && apt-get clean && rm -rf /var/lib/apt/lists/* /tmp/* /var/tmp/*
  EXPOSE 3128/tcp
  
  #
  