[dns-operations] CloudFlare policy on ANY records changing

Yunhong Gu guu at google.com
Tue Mar 10 00:33:19 UTC 2015

Returning NOTIMP may confuse resolvers as it is not clear "what is not
implemented". A NOTIMP response to an ANY query with EDNS0 option could
cause a retry-without-EDNS0 query, or mislead the resolver to believe that
the nameserver does not support EDNS0.


On Fri, Mar 6, 2015 at 2:10 PM, Paul Vixie <paul at redbarn.org> wrote:

> Jared Mauch wrote:
>  > On Mar 6, 2015, at 11:02 AM, Olafur Gudmundsson <ogud at ogud.com> <ogud at ogud.com> wrote:>
> > > By announcing this we are hoping that anyone running un-patched qmail will fix it.
> I’m guessing there will be no change.
> right. most of us blocked IDENT (without ICMP, to force the far end into
> its longest possible state-holding timeout period) in order to communicate
> the offensive futility of a protocol that asked an initiator to help in any
> way to verify the identity behind some other connection emanating from that
> same initiator, and the result was not widespread "IDENT sucks, i'm turning
> it off", but rather, further ignorance and more bliss.
> QMAIL users are already accustomed to frequent mystery failures. no matter
> how many authority servers turn off ANY queries, there will be no patching
> of QMAIL and no migration of QMAIL operators to other platforms.
> the interesting part of this game will be when mozilla firefox's users
> start switching back to Chrome again because the DNS community's immune
> response to the recent QTYPE=ANY change hits that browser right between the
> eyes. perhaps they'll switch MPR (mozilla portable runtime) to the newer
> "http://getdnsapi.net/" <http://getdnsapi.net/> tech in order to stem
> their losses? anyway i'm going to stock up on popcorn so as to enjoy
> watching this show.
> --
> Paul Vixie
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