how DNS client perform reverse lookup

Kevin Darcy kcd at
Tue Jan 25 02:45:28 UTC 2005

Keith Ng wrote:

>Would someone tell me how DNS client perform reverse lookup? Is there 
>any root servers like forwards lookup for the in-addr.apra domain?
.arpa is delegated from the root zone, is delegated from 
that. What is it exactly that you want to know? There's no need for an 
"" hints file: that's only necessary for the very apex of 
the namespace, i.e. the root zone itself. Once you can find the root, 
you can find everything underneath it.

- Kevin

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