anchor.diff:      else
       pkgs.writeText "ntopng.conf" ''
         ${concatStringsSep " " (map (e: "--interface=" + e) cfg.interfaces)}
  -      --http-port=${toString cfg.http-port}
  +      --http-port=${toString cfg.httpPort}
         --redis=${cfg.redis.address}
         --data-dir=/var/lib/ntopng
         --user=ntopng
  
positive.code: in
  
  {
  
    options = {
  
  
negative.code:         '';
        };
  
        httpPort = mkOption {
          default = 3000;
          type = types.int;
          description = ''
  