Reverse DNS and single IP address space

Greg 'groggy' Lehey grog at
Thu Mar 27 17:18:45 PST 2003

On Thursday, 27 March 2003 at 17:10:13 -0800, Victor Bondarenko wrote:
> On Fri, Mar 28, 2003 at 11:20:34AM +1030, Greg 'groggy' Lehey wrote:
>>> zone "" {
>>> 	type slave;
>>> 	file "s/";
>>> 	masters {
>>> 	};
>>> };
>> This is a slave entry.  It would be more interesting to see what the
>> master config looks like.  Anyway, this address is in an RFC 1918
>> non-routable address range.  That means it's not unique, and it's
>> completely meaningless on the global Internet.  In fact, I have that
>> address here :-)
> When I see a non-routable IP on a mailing list, I usually assume that
> whoever is asking the question doesn't want to tell what the real IP
> address is (although why I'm not exactly sure.)

That's a possibility, but it somewhat obfuscates the story here.
Anyway, it doesn't make any sense to ask your ISP to provide a reverse
lookup for an RFC 1918 address.

See complete headers for address and phone numbers
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