From: "Eric D. Williams" <eric(_at_)infobro(_dot_)com>
I stand corrected. I do not see that as a best practice (esp. related to
secure configuration of an IP).
I don't understand the second sentence. How is a system's security
affected by having more than one PTR RRs for an IP address?
I would agree that because many applications and support tools don't
understand multiple PTR RRs per IP address, it would be unwise to
build a large scale protocol or application that depends on them being
widely supported immediately.
Vernon Schryver vjs(_at_)rhyolite(_dot_)com
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