> John Levine <mailto:jo...@taugh.com>
> Monday, February 23, 2015 5:46 PM
>
> I suspect someone who didn't understand DNS very well said that once
> in a paper or meeting or web page, and it spread cargo-cult style
> across the Internet.
>
> "Authoritative" makes sense.

in the sense that the transfer occurs asynchronous to query/response
transactions, and given that the hated [RFC1035 4.2.2] contains the
words, "The server should not block other activities waiting for TCP
data", i think we could pretend that "A" stood for "asynchronous" or
anything else we wanted, at this late stage of the game. consider also
this [ibid] text:

> 6.3. Zone refresh and reload processing
> ...
> If a master is sending a zone out via AXFR, and a new version is created
> during the transfer, the master should continue to send the old version
> if possible.  In any case, it should never send part of one version and
> part of another.  If completion is not possible, the master should reset
> the connection on which the zone transfer is taking place.

which purposely and explicitly makes the zone transfer process asynchronous 
from any query/response stream. 

however, AXFR was never an acronym, and there is no original meaning to
be discovered here. in [RFC1035 3.2.3] there is one line of text:

> AXFR            252 A request for a transfer of an entire zone

 
and it's the definition of the QTYPE, not the overall transaction that
the QTYPE is part of.

i think the safest thing is to not invent an acronym, but rather, let
the QTYPE definition stand as written.

-- 
Paul Vixie
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