Debian Bug report logs - #241388
dhcp3-client: client can't update A record

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Message #5 received at submit@bugs.debian.org (full text, mbox, reply):

From: Susan Kleinmann <sgk@debian.org>

To: Debian Bug Tracking System <submit@bugs.debian.org>

Subject: dhcp3-client: client can't update A record

Date: Wed, 31 Mar 2004 22:57:31 -0500

Package: dhcp3-client
Version: 3.0_3.0.1rc13-1
Severity: normal

My dhcp3-server is set up to do DDNS:
	ddns-update-style interim;

(Skipping all the zone info, etc.)

The server appears to be doing its job:  when a client
tries to initiate or renew its lease, the server does
update the appropriate PTR record.

However, the client is not doing its job.  Though it
is configured to update its own A record:
	send fqdn.server-update off;
it fails.

If I ask the DHCP server to update the A record, by
reconfiguring the client with:
	send fqdn.server-update on;
then the A record is acurately updated (although the
A record seems to get lost for a short while every time
the client renews its lease).

Of possible interest:  There's a statement in make_request() in 
dhclient.c that sets client->sent_options to 0.  AFAICT, sent_options
never seems to recover after that.  The function, client_dns_update(),
where the client is supposed to update the nameserver, begins by 
testing whether client->sent_options is zero, in which case, it 
returns without executing any of the client-side DDNS code.

This is why I finally gave up trying to get the client to do the
DDNS update, and set server-update to on.

I'd be happy to supply additional configuration information if
that would be helpful.

-- System Information:
Debian Release: testing/unstable
  APT prefers testing
  APT policy: (500, 'testing')
Architecture: i386 (i686)
Kernel: Linux 2.4.24
Locale: LANG=en_US, LC_CTYPE=en_US

Message #10 received at 241388@bugs.debian.org (full text, mbox, reply):

From: Matt Zimmerman <mdz@debian.org>

To: Susan Kleinmann <sgk@debian.org>, 241388@bugs.debian.org

Subject: Re: Bug#241388: dhcp3-client: client can't update A record

Date: Mon, 5 Apr 2004 17:57:59 -0700

On Wed, Mar 31, 2004 at 10:57:31PM -0500, Susan Kleinmann wrote:

> However, the client is not doing its job.  Though it
> is configured to update its own A record:
> 	send fqdn.server-update off;
> it fails.
> 
> If I ask the DHCP server to update the A record, by
> reconfiguring the client with:
> 	send fqdn.server-update on;
> then the A record is acurately updated (although the
> A record seems to get lost for a short while every time
> the client renews its lease).

I'm afraid I don't have much experience with client-side DNS updates, so I'm
not entirely sure how it's supposed to work.  Perhaps Eloy does; if not,
this should probably go upstream.

-- 
 - mdz

Message #13 received at 241388-submitter@bugs.debian.org (full text, mbox, reply):

From: Andrew Pollock <apollock@debian.org>

To: 241388-submitter@bugs.debian.org

Subject: Are you still experiencing this problem?

Date: Thu, 15 Sep 2005 21:41:10 +1000

tags 241388 + moreinfo
thanks

Hi,

Are you still experiencing this problem with the latest version of
dhcp3-client?

regards

Andrew

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