I detected that very domains is apoint to my DNS server.
Example:
http://www.6692.com
http://www.hk7868.com
http://tm6868.com
http://www.33367.com
http://hk9796.com
All this domains apoint to the same page. But any this domains are hosted in my server.
My DNS is http://ns1.bmserver.adm.br

Also I could see that this process is taking much time in my server:
/usr/sbin/named -u named -t /var/named/chroot

Somebody help me please?