DNS server log

[warrenliang]

Hello:
A Solaris acts as a DNS server. The file /etc/named.conf has the following settings for its log:
...
logging {
channel named_debug {file "/var/log/named.debug" ;
severity dynamic;
print-category yes;
print-severity yes;
print-time yes; };
category default { named_debug; };
category xfer-in { named_debug; };
category xfer-out { named_debug; };
category queries { named_debug; };
category lame-servers { null; };
};
...
# ls -al /var/log/named.debug
-rw-r--r-- root other 0 Apr 26 09:04 named.debug
This system has been up and running for a long time, I wonder how the named.debug file is still 0 block? I updated several zone files just the other day.

O/S: Solaris 8
BIND version: in.named BIND 8.2.2-P5
Thanks,
Warren