From mboxrd@z Thu Jan  1 00:00:00 1970
Message-ID: <7a0c239b4855c0dcf4dc40e67bf4236a@terzarima.net>
From: Charles Forsyth <forsyth@terzarima.net>
Date: Wed, 18 Oct 2006 20:56:32 +0100
To: 9fans@cse.psu.edu
Subject: Re: [9fans] csipinfo
In-Reply-To: <08660eafbf4cef501efcf7a33fe5d3d2@vitanuova.com>
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>if one knew more about DNS, maybe the .in-addr.arpa thing
>would be obvious...

that's what's the subject of DNS lookups to do a `reverse lookup'.
it's really an ordinary lookup of specially-constructed names in
a domain reserved for them.  that's the DNS itself, nothing to do with Plan 9.
dnsquery is mainly used interactively.  i'm not sure you really want to do it
inside ndb/dns itself, because it catches cases where client programs
are confused (or have been confused) between domain names and IP addresses.