redhat as 4 dns 问题

我安装完DNS后执行/etc/init.d/named status 检测状态，可显示
rndc: connection to remote host closed
This may indicate that the remote server is using an older version of
the command protocol, this host is not authorized to connect,
or the key is invalid.
不知改怎麽办？

系统是全部安装的，没有配置任何参数，启动了b ind服务。