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