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△ comp.protocols.tcp-ip.domains △

◅ Binding multiple IP addresses to individual host names

No root nameservers for class xyz

In article <D3yJqw.A7z@thomsoft.com>,
Mehregan Nejat @rasht <mnejat@alsys.com> wrote:
>Sorry if this is a FAQ, but I could not find this error/warning message
>anywhere.  My named keeps logging the following messages.  What does it
>mean?

It means that something is sending your nameserver some *very* strange
queries.

Every DNS query and reply has a "class" field.  This is (almost) always
1, for the Internet (IN) class.  (Although 3 is assigned to the Chaos
(CH) class; and 4 to the Hesiod (HS) class, which is used in some
places.)

According to STD 2 (RFC 1700), no other class number is assigned, so
whatever's generating these queries is very confused indeed.  No harm
will come to your server, but if you want to track down the rogue
client, you could use query logging or debug mode to see where they're
being sent from.

Tim.
--
Tim Goodwin        | "System V wasn't going to go away just because POSIX
Public IP Exchange | said so.  (More's the pity.)" -- Henry Spencer

Original headers:

From: tim@pipex.net (Tim Goodwin)
Newsgroups: comp.protocols.tcp-ip.domains
Subject: Re: No root nameservers for class xyz
Date: 14 Feb 1995 18:10:33 -0000
Organization: PIPEX, 216 Science Park, Cambridge, England
Message-ID: <3hqrmp$s9c@pipe.pipex.net>
References: <D3yJqw.A7z@thomsoft.com>

△ comp.protocols.tcp-ip.domains △

◅ Binding multiple IP addresses to individual host names