Ted Lemon wrote:
you have to do the "rm -rf $qname" when you receive the nxdomain.
The draft says you have to do this, yes. That's what I'm objecting
to.Is there some reason why this is required for interoperability?
no. it's not an interoperability matter.
however, how you'd go about justifying the removal of all rrsets at some
name when you learn that this name does not exist, without also removing
all rrsets of all subdomains, will be interesting.
if i had rrsets cached at a name, and then i heard an nxdomain for that
name, and then that nxdomain expired, i would not "feel alright about"
answering with the old rrsets. why would subdomains be different?
noting as before: all of this is implied by the base dns specification,
so this really is a clarification as to impact, not a protocol change.
--
P Vixie
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