my syslog

[Gian]

hi,
i have many messages in my syslog, and i dont undderstand what is that
mean. a messages is like this :
May 31 18:17:44 myserver named[55714]: denied query from
[xxx.xxx.xxx.xxx].53519
for "SOMETHING.CO.ID"

notice: that domain was in my authority, and i have erase all of
configuration in my named.conf, so why that messages appears in my
syslog??? and what i have supposed to be???
 
thx
-Gian-