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Matus UHLAR - fantomas wrote:
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<pre wrap="">On Thu, Jul 09, 2009 at 05:50:02AM -0700,
Fr34k <a class="moz-txt-link-rfc2396E" href="mailto:freaknetboy@yahoo.com"><freaknetboy@yahoo.com></a> wrote
a message of 119 lines which said:
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<pre wrap="">There should be one and only one PTR for that IP.
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On 10.07.09 22:40, Stephane Bortzmeyer wrote:
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<pre wrap="">No. No good reason for such restriction.
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While from DNS' point of view there is no reason to do that, many programs
checking and/or validating reverse DNS may comply or give strange results
(different hostname may appear in the logs).
Also, validating (forward confirming) more reverse names takes much longer
time than validating just one. Or, will you validate only one/few of them?
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How do you validate when the forward host name that you know about
doesn't match the single PTR record you think reverse DNS should be
limited to?<br>
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-- <br>
Dave<br>
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