And good for
them, I say. Too many places have been sloppy about
rDNS for too long.
I agree, to a point. The powers that be FINALLY required
reverse
entries for everything, utilized or not.
There certainly is no such de-facto requirement, whatever there may be
de-jure. Just now, for example, I did traceroutes to 218.16.120.204
and 221.4.203.28, two Chinese addresses I found involved in spam
relatively recently. In each case, as soon as the trace hit Chinese
address space, the routers had no rDNS at all - not just mismatched
with forward DNS, but no names in sight.
Provides
aliases in the sense of returning multiple PTRs, or in the
sense of passing through a CNAME?
If the reverse lookup returns a real fixed
hostname that matches the
forward lookup, but it still ALSO lists aliases, they refuse it.
Lists aliases in the sense of returning multiple PTRs, or in the sense
of passing through a CNAME?
If the former, do the other names also forward-resolve to the address
in question?
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