Danny Mayer wrote:
> At 02:48 PM 3/8/2005, Roy Arends wrote:
>> Note that there is no need to prove the nonexistence of
>> test1.test2.example.com, since test2.example.com does not exist.

> I'm not sure that that is true. If I add the following A record to the
> example.com zone:
> test1.test2 10800 IN A
> and I don't create any records for test2 does test2.example.com
> exist, and if I ask won't I get an NXDOMAIN response?

test2.example.com is an empty non-terminal. This "exists" in DNS
terminology. It will appear in the NSEC(3) chain.



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