On Thu, Aug 26, 1999 at 03:17:14PM +0100, Sascha Luck wrote:
> > Aug 26 13:12:16 cerberus named: ns_forw: \
> > query(188.8.131.52.in-addr.arpa) \
> > A RR negative cache entry (MIDIR.UCD.IE:) \
> > learnt (NODATA=184.108.40.206:NS=220.127.116.11)
>> It means that a name server 'remembers' that a name doesn't exist. It's,
> however, not supposed to be implemented at all....
It's not RFC2308 Negative Caching although it looks like it.
What's actually happening is that your nameserver has midir.ucd.ie in
its cache as a nameserver for 18.104.22.168.in-addr.arpa. However
midir.ucd.ie doesn't exist anymore, so that bad cache entry gets logged.
midir.ucd.ie was turned off about two weeks ago but a lot of the people
it was doing secondary for haven't updated their delegations to list its
BIND 8.2.x implements RFC2308 Negative Caching.
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