Maguire, Jean (Gexpro, consultant) Jean.Maguire at Gexpro.com
Tue Oct 23 17:58:02 UTC 2007

It appears that the reverse zone file gets lots of broken entries when
running ddns.  The straight zone file appears to be updating find but
not the reverse zone:

                         PTR     GEX-VMWARE-56.gesdom1.ad.gesupply.com.

-----Original Message-----
From: bind-users-bounce at isc.org [mailto:bind-users-bounce at isc.org] On
Behalf Of Adam Tkac
Sent: Tuesday, October 23, 2007 8:40 AM
To: Sangoi, Nehal (Gexpro, consultant)
Cc: Bind-Users
Subject: Re: DDNS

On Mon, Oct 22, 2007 at 05:07:08PM -0400, Sangoi, Nehal (Gexpro,
consultant) wrote:
> Hi All
> We have our bind environment running with DDNS.
> Master server and the zones are on Linux Bind 9.2.4 and windows DHCP 
> server is sending the DDNS updates to these zone files. Now, whenever 
> the lease expires for any desktop, the forward lookup zone's A record 
> of that desktop gets updated into the zone file perfectly fine but the

> DDNS is not able to delete the old reverse lookup record into the zone
> What could be the reason for the same?

Are you sure that MS DHCP server sends correct DDNS updates (I mean that
DHCP wants delete proper reverse record). If yes logging information on
named side is your best friend. See why is update refused etc.


Adam Tkac, Red Hat, Inc.

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