DNS Problem

>   From: Robert Martin-Legene <robert at dknet.dk>
>   To: Piet Beertema <Piet.Beertema at cwi.nl>
>   Cc: dns-wg at ripe.net

>   On Fri, 15 Sep 1995, Piet Beertema wrote:
>   
>   > - In the init file one could still see where a given
>   >   root server is located, by comparing the A record
>   >   with the A records of the root servers.
>   
>   A bit complicated.. If the in-addr.arpa didn't map to the root-servers.net
>   zone, but to the old name you could easily use host -A e.root-servers.net
>   and find the old "location". Why they didn't do that I'm not really sure.=

I suppose it is mainly because the "old location" can have several IP
addresses only one of which is defined in the root-servers.net domain
(ns.nasa.gov is such an example).

This can probably allow for security features such as packet filtering on
destination address.

By the way, PSI.NET has solved the problem in a similar manner to what you
suggest, but the other way round:

c.psi.net               CNAME   c.root-servers.net
c.root-servers.net      A       192.33.4.12

Janos Zsako