نصب dns روی centos

[anjexion]

من bind رو حذف کردم و از طریق webmin نصب کردم و تنطیمات رو هم انجام دادم اما یه ارور داد:

NDC command failed : 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.

کسی اطلاعی داره؟