Thanks for your reply!
I am not experiencing problems on the server but the log is full of this “denied” messages. and the list is so long you cannot browse trough it.
Also in the apache log I see everyday thousand of lines in the log. I wonder if all this log writing is not seriously delay the server?
It seems that BIND is refusing cached queries for your localhost. Can you please post the output of cat /etc/bind/named.conf.options (please enclose all shell listings in [code][/code] tags to preserve line breaks and monospace font).
“Thousands of lines” in the Apache log are quite normal for an average site. Each page impression can generate dozens of lines if a number of images is loaded etc. Considering each line is only like 100 bytes in size, any remotely modern hard drive should be able to handle millions of lines per day easily.