On May 23, 2008, at 6:05 PM, Arvel Hathcock wrote:
A compromise proposal has been laid out which is to remove the
NXDOMAIN
step from the algorithm but add text defining ADSP as applicable
only to
domains which actually exist in DNS. This removes the need for
ADSP to
specify how (or by what means) such a check is determined, does not
introduce normative language, addresses all the objections yet put
forth, and still provides a basis for believing that a check will
be done.
If we are to have or to imply a check, then surely the worst
situation is for a domain advertising ADSP to have no clue as to what
verifiers will do, apart from the fact that they will do something
that is effectively random.
Surely a technical spec that guarantees a random result is not a good
spec.
Rather than create a vague definition of "existence" why not make a
precise definition but make it optional. A verify MAY do an existence
test and if they do so, it will be done as follows...
Mark.
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