[dns-operations] Concerns regarding the ICANN/IANA DNS vulnerability checker
vixie at isc.org
Tue Aug 19 18:21:44 UTC 2008
> > Yes, and whether this information should be used for anything else but
> > sending NOTIFY messages, is arguable.
> Hmm, this is an interesting point. We normally talk about "cache" for
> name servers, but Peter's remarks seems to suggest thinking about
> different kinds of caches, and the rules about data from one getting
> into the other(s). Is this a distinction we want to make, and is it
> compatible with the current RFCs?
from the point of view of the NOTIFY initiator, the ADNS is just a normal
dns stub which makes gethostbyname() calls against a configured RDNS. in
BIND4 and BIND8 i implemented it through the fetch-glue logic, but years
and miles and packets since that time have shown that fetch-glue is a bad
idea and NOTIFY should use the nameserver host's /etc/resolv.conf or equiv
to do its name->address translations. RFC 1996 should be updated to make
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