[dns-operations] DNS deluge for x.p.ctrc.cc
Mark_Andrews at isc.org
Fri Mar 3 10:09:19 UTC 2006
> * Geo. wrote:
> > Unrelated question just for my own education, when you say ignoring
> > nxdomain, do you mean they don't cache an nxdomain response? Another
> > question, if a server does cache an nxdomain response, how does it know what
> > TTL to use?
> Use DNSSEC. This allows and encourages caching of NXdomain ...
DNSSEC and negative caching are orthogonal issues.
See RFC 2308.
Mark Andrews, ISC
1 Seymour St., Dundas Valley, NSW 2117, Australia
PHONE: +61 2 9871 4742 INTERNET: Mark_Andrews at isc.org
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