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.
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