Re: [dnsext] Fwd: djb on NXDOMAIN/NODATA for non-terminals

[Paul Vixie <[e-mail]>]

> Date: Mon, 28 Mar 2011 15:44:50 -0700
> From: Matthew Dempsky <[e-mail]>
> 
> You're mischaracterizing the argument.  The concern is that servers
> that follow the old behavior are still in widespread use, and suddenly
> changing the interpretation will cause massive backwards compatibility
> problems.

i don't think so.  nobody is querying intersticial names from an rbl so
even if there were millions of rbldnsd servers running on autopilot it
would not have an operational effect.  but there are at best thousands
of rbldnsd servers and none of them are on autopilot.  tinydns may have
a larger installed base, but there are very few empty nonterminals in
the tinydns datasets i have seen.  there just is no "widespread use" of
the "old behaviour".

> Just tie the new behavior to an EDNS option or something.  No one's
> going to protest that.

if it would take a wire protocol change then it's not a clarification
and i don't think anybody would say it was worth adding complexity for.
(not even me.)