dhcp, dyndns and "set ddns-fwd-name" vs "set ddns-client-fqdn"

David W. Hankins David_Hankins at isc.org
Wed Jun 14 15:11:10 UTC 2006

On Wed, Jun 14, 2006 at 10:26:53AM +0200, Philippe Strauss wrote:
> set ddns-fwd-name "host.domain.com";
> set ddns-client-fqdn "host.domain.com";

ddns-client-fqdn indicates the client performed updates on the forward
records (or told the server it would, and as it turned out was not able
to because it doesn't have the keys necessary).

As it turns out, most windows boxes think they are allowed to update
their A record by default (using something called GSS-TSIG).  See also
the as112.net project.

You can guide wether the server will allow client-updates with the
'allow/deny client-updates;' configuration variable.

David W. Hankins		"If you don't do it right the first time,
Software Engineer			you'll just have to do it again."
Internet Systems Consortium, Inc.		-- Jack T. Hankins

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