On 07/30/2012 05:57 PM, Ted Lemon wrote:
On Jul 30, 2012, at 4:59 PM, Michael Thomas wrote:
Maybe I missed it, but why is lack of reverse map a problem, minus the
security desire to show some weak control of the allocated prefix?
This is the wrong way to ask the question. Let me restate it:
Is there some application for the reverse DNS, aside from the totally useless
"security" provided by matching the PTR with the AAAA?
The answer is yes. There are a number of uses: peer-to-peer rendezvous, a
place to publish keys, debugging info are examples. AFAIK there is no
controversy about the fact that that using the PTR record as a confirmation
that you are who you say you are is completely useless and should not be done.
Tell that to the maintainers of this mailing list where I was just bitten by not
having a reverse map for a v6 address from my tunnel provider so that my
outbound mail to the list was rejected :) That's SOP for mail these days, not
that I disagree with you.
Mike
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