Dhcpd not updating with A record

Simon Hobson dhcp1 at thehobsons.co.uk
Wed Dec 28 08:50:39 UTC 2011

Yannick CHAMPS wrote:

>you will find my config below.
>From /var/log/message, I can see update for the reverse zone but not for
>the acme.com zone :
>ec 27 14:07:25 vitiwebsrv2 dhcpd: DHCPRELEASE of from
>00:1f:fb:14:1f:96 (yannick-acer) via eth0 (found)
>Dec 27 14:07:53 vitiwebsrv2 dhcpd: DHCPDISCOVER from 00:1f:fb:14:1f:96
>Dec 27 14:07:53 vitiwebsrv2 dhcpd: DHCPOFFER on to
>00:1f:fb:14:1f:96 (yannick-acer) via
>Dec 27 14:07:53 vitiwebsrv2 dhcpd: added reverse map from
> to yannick-acer.acme.com
>Dec 27 14:07:53 vitiwebsrv2 dhcpd: DHCPREQUEST for
>( from 00:1f:fb:14:1f:96 (yannick-acer) via
>Dec 27 14:07:53 vitiwebsrv2 dhcpd: DHCPACK on to
>00:1f:fb:14:1f:96 (yannick-acer) via
>Dec 27 14:07:57 vitiwebsrv2 dhcpd: DHCPINFORM from via
>Dec 27 14:07:57 vitiwebsrv2 dhcpd: DHCPACK to
>(00:1f:fb:14:1f:96) via eth0
>Is this  normal behaviour ?

Most likely the client is setting an option to say it will do the 
forward update - default I think in Windows. You can set 
"deny-client-updates" (IIRC) in the server config to turn this off.

Simon Hobson

Visit http://www.magpiesnestpublishing.co.uk/ for books by acclaimed
author Gladys Hobson. Novels - poetry - short stories - ideal as
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