[Gllug] DNS verification (slightly OT)

[Joel Bernstein]

On 17 Apr 2009, at 09:06, Andy Millar wrote:

>> john at liberty:~$ host -t NS morsing.cc
>> morsing.cc name server 72.14.177.241.morsing.cc.
>> morsing.cc name server 93.93.131.95.morsing.cc.
>> morsing.cc name server ns1.widge.net.
>> morsing.cc name server ns2.widge.net.
>
> Plus, using IP addresses as name servers isn't valid, is it?

What? No! It's perfectly valid to have:
mydomain.foo. IN NS ns1.example.org.
mydomain.foo. IN NS 12.34.38.82

So there's no reason /not/ to "use IP addresses as name servers" but I  
think you're also failing to note that while  
"72.14.177.241.morsing.cc." may encode the probable IP address in the  
hostname (it'd be evil otherwise...) it is clearly still a resolveable  
DNS name.

Does that help?

/joel
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