anchor.diff:            default = 53589;
             description = ''
               Port number of the Taskserver.
  +          '';
  +        };
  +
  +        fqdn = mkOption {
  +          type = types.str;
  +          default = "localhost";
  +          description = ''
  +            The fully qualified domain name of this server.
             '';
           };
   
  
positive.code:             --outfile "${cfg.dataDir}/keys/ca.key"
            ${pkgs.gnutls}/bin/certtool -s \
              --template "${pkgs.writeText "taskserver-ca.template" ''
                cn = ${cfg.server.host}
                cert_signing_key
                ca
              ''}" \
  
negative.code:           type = types.str;
            default = "localhost";
            description = ''
              The address (IPv4, IPv6 or DNS) to listen on.
            '';
          };
  
  