anchor.diff:          proxy_redirect off;       
   
           if (!-f $request_filename) {
  -            proxy_pass http://<%= define_servername %>;
  +            proxy_pass http://<%= server_name %>;
               break;
           }
       }
  
positive.code: #
  # module nginx
  
  upstream <%= define_servername %> {
      server      <%= upstream %> fail_timeout=0;
  }
  
  
negative.code:     listen      <%= define_port %>;
      server_name <%= server_name %><% server_aliases.each do |val| -%> <%= val %><% end -%>;
  
      access_log          /var/log/nginx/<%= server_name %>.access.log;
      error_log           /var/log/nginx/<%= server_name %>.error.log;
  
      root                <%= root_dir %>;
  
  