On Thu, 22 Mar 2012 10:09:22 -0400 Michael Scheidell <michael.scheid...@secnap.com> wrote:
> like ip/dns that is not 'round trip' consistent :-) > host colo3.roaringpenguin.com > colo3.roaringpenguin.com has address 70.38.112.54 > host 70.38.112.54 > 54.112.38.70.in-addr.arpa domain name pointer roaringpenguin.com There's absolutely nothing wrong with that. Round-trip consistency means this: A_lookup(PTR_lookup(70.38.112.54)) == 70.38.112.54 which is indeed the case. There's *nothing* to say that PTR_lookup(A_lookup(some_hostname)) is necessarily some_hostname. Regards, David.
