[tlug] Box Freezes Up: named at fault?

[Shawn <bofh@example.com>]

Hi All,

My box (FreeBSD) went offline yesterday. The screen was blank/black and frozen, 
and the reset button wouldn't work. I powered off and powered on again. 
An hour or so later, the same thing happened. 

Checking /var/log/messages, I see a bunch of lines like this (for the domains
for which my box is the slave DNS server) just before the box dies:

Jan 29 13:29:52 skibo named-xfer[34085]: [210.239.161.186] not authoritative for hojin.or.jp, SOA query got rcode 0, aa 0, ancount 0, aucount 5 

I'm  using BIND version 8.
Here's some info from my named.conf file:


=========================================================
logging {
        category queries { null; };
}

options {
        directory "/etc/namedb";
        forwarders {
                210.239.161.186;
        };

};

// Note: the following will be supported in a future release.
/*
host { any; } {
        topology {
                127.0.0.0/8;
        };
};
*/

zone "." {
        type hint;
        file "named.root";
};

zone "0.0.127.IN-ADDR.ARPA" {
        type master;
        file "localhost.rev";
};

// RFC 3152
zone
"1.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.IP6.ARPA" {
        type master;
        file "localhost-v6.rev";
};

// RFC 1886 -- deprecated
zone
"1.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.IP6.INT" {
        type master;
        file "localhost-v6.rev";
};

//# hojin.or.jp : slave #
zone "hojin.or.jp" in {
        type slave;
        file "pz/slave_hojin.or.jp";
        masters {
                210.239.161.186;
        };
};

... and so on for all my slave domains ...

=========================================================

Anyone have any idea if anything is wrong with my conf file? Could that be
the reason the box is dying?

Any tips appreciated,

Shawn