anchor.diff:  }
   
   map $http_user_agent $approved_scraper {
  -  default '';                       # Not approved
  -  '~^JOSM\/' 'JOSM';
  -  '~^Mozilla\/5\.0\ QGIS\/' 'QGIS';
  +  default                   0; # Not approved
  +  '~^JOSM\/'                1; # JOSM
  +  '~^Mozilla\/5\.0\ QGIS\/' 1; # QGIS
   }
   
   map $http_user_agent $denied_scraper {
  -  default '';          # Not denied
  -  '~^Python\-urllib\/' 'Python';
  -  '~^python\-requests\/' 'Python';
  -  '~^R$'               'R';
  -  '~^Java\/'           'Java';
  -  '~^tiles$'           'Unknown';
  -  '~^Dalvik\/'         'Dalvik';
  -  '~^runtastic'        'runtastic';
  -  'Mozilla/4.0'        'Unknown';
  -  'Mozilla/4.0 (compatible; MSIE 6.0; Windows NT 5.1; SV1)' 'Unknown';
  +  default                0; # Not denied
  +  '~^Python\-urllib\/'   1; # Library Default
  +  '~^python\-requests\/' 1; # Library Default
  +  '~^R$'                 1; # Library Default
  +  '~^Java\/'             1; # Library Default
  +  '~^tiles$'             1; # Library Default
  +  '~^Dalvik\/'           1; # Library Default
  +  '~^runtastic'          1; # App
  +  'Mozilla/4.0'          1; # Fake
  +  'Mozilla/4.0 (compatible; MSIE 6.0; Windows NT 5.1; SV1)' 1;  # Fake
   }
   
   map $http_referer $denied_referer {
  -  default '';                      # Not denied
  -  'http://www.openstreetmap.org/'  'old-osm';
  -  'http://www.osm.org/'            'old-osm';
  -  'http://openstreetmap.org'       'fake-osm';
  -  'http://www.openstreetmap.org'   'fake-osm';
  +  default                          0; # Not denied
  +  'http://www.openstreetmap.org/'  1; # Faked
  +  'http://www.openstreetmap.org'   1; # Faked
  +  'http://openstreetmap.org/'      1; # Faked
  +  'http://openstreetmap.org'       1; # Faked
  +  'http://www.osm.org/'            1; # Faked
  +  'http://www.osm.org'             1; # Faked
  +  'http://osm.org/'                1; # Faked
  +  'http://osm.org'                 1; # Faked
   }
   
   # Limit Cache-Control header to only approved User-Agents
  
positive.code:       }
  
        if ($denied_scraper) {
          return 429;
        }
        if ($denied_referer) {
          return 418;
        }
  
  
negative.code: # DO NOT EDIT - This file is being maintained by Chef
  
  upstream tile_cache_backend {
    server 127.0.0.1;
  
    # Add the other caches to relieve pressure if local squid failing
    # Balancer: round-robin
  <% @caches.each do |cache| -%>
  <% if cache[:hostname] != node[:hostname] -%>
  <% cache.ipaddresses(:family => :inet, :role => :external).sort.each do |address| -%>
    server <%= address %> backup; # Server <%= cache[:hostname] %>
  <% end -%>
  <% end -%>
  <% end -%>
  
    keepalive 256;
  }
  
  # Geo Map of tile caches
  geo $tile_cache {
    default 0;
  <% @caches.each do |cache| -%>
  <% cache.ipaddresses(:family => :inet, :role => :external).sort.each do |address| -%>
    <%= address %> 1; # <%= cache[:hostname] %>
  <% end -%>
  <% end -%>
  }
  
  # Rates table based on current cookie value
  