estou usando o bind9 e kurumin 7

root@server1:/etc/bind# /etc/init.d/bind9 restart
Stopping domain name service...: bindrndc: 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.
Starting domain name service...: bind failed!
root@server1:/etc/bind# ps -auxw | grep bind
Warning: bad ps syntax, perhaps a bogus '-'? See
bind 24737 0.0 1.6 31036 3760 ? Ssl Jul28 0:03 /usr/sbin/named -u bind

alguma dica desse erro ai?