[dns-operations] DNS deluge for x.p.ctrc.cc

[Mark Andrews]

> * 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
--
Mark Andrews, ISC
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