This topic deals with an entry I found in /var/log/messages:
Jan 11 09:14:19 ns named: Lame server on 'desstats.distributed.net' (in
'DISTRIBUTED.NET'?): [188.8.131.52].53 'NS.NAMESERVERS.net': learnt
In short, it means that your name server was told that that a given name server would
contain information about a given domain. But it didn't. It is, in short, a
DNS configuration error with somebody elses domain.
I found a
very good explanation of this message by Greg Lehey in the FreeBSD mailing list