anchor.diff:  		rrdtool \
   		sendmail \
   		git && \
  -	pear install Net_IPv4 && \
  -	pear install Net_IPv6 && \
   	rm -rf /etc/nginx/sites-available/* /etc/nginx/sites-enabled/* && \
   	sed -i 's/;opcache.enable=0/opcache.enable=1/g' /etc/php/7.0/fpm/php.ini && \
   	sed -i 's/;opcache.fast_shutdown=0/opcache.fast_shutdown=1/g' /etc/php/7.0/fpm/php.ini && \
  
positive.code: 	sed -i 's/;opcache.load_comments=0/opcache.load_comments=0/g' /etc/php/7.0/fpm/php.ini && \
  	sed -i 's/;opcache.save_comments=0/opcache.save_comments=0/g' /etc/php/7.0/fpm/php.ini && \
  	sed -i 's/;opcache.revalidate_freq=2/opcache.revalidate_freq=60/g' /etc/php/7.0/fpm/php.ini && \
  	sed -i 's/pm.max_children = 5/pm.max_children = 12/g' /etc/php/7.0/fpm/pool.d/www.conf && \
  	sed -i 's/pm.start_servers = 2/pm.start_servers = 4/g' /etc/php/7.0/fpm/pool.d/www.conf && \
  	sed -i 's/pm.min_spare_servers = 1/pm.min_spare_servers = 4/g' /etc/php/7.0/fpm/pool.d/www.conf && \
  	sed -i 's/pm.max_spare_servers = 3/pm.max_spare_servers = 8/g' /etc/php/7.0/fpm/pool.d/www.conf && \
  
negative.code: 	echo 'deb http://ppa.launchpad.net/ondrej/php/ubuntu trusty main' > /etc/apt/sources.list.d/ondrej-php7.list && \
  	echo 'deb http://ppa.launchpad.net/nginx/development/ubuntu trusty main' > /etc/apt/sources.list.d/nginx.list && \
  	apt-get update && \
  	apt-get -yq purge openssh-server && \
  	apt-get -yq autoremove --purge && \
  	apt-get -yq dist-upgrade && \
  	apt-get -yq install --no-install-recommends \
  		nginx \
  