DDNS

[Kevin Darcy]

Neil Koozer wrote:

> Mark_Andrews at isc.org wrote in message news:<bgdr05$24ue$1 at sf1.isc.org>...
> > > Any ideas on how to fix these errors in Bind 9.2.2
> [...]
> > > Aug  1 08:27:47 ns3 named[21372]: client 10.11.32.11#32777: updating zone
> > > dhcp.mydoman.com /IN': update failed: 'name not in use' prerequisite not
> > > satisfied (YXDOMAIN)
> > > Aug  1 08:27:47 ns3 named[21372]: client 10.11.32.11#32777: updating zone
> > > dhcp.mydoman.com /IN': update failed: 'RRset exists (value dependent)'
> > > prerequisite not satisfied (NXRRSET)
> > >
> > > It doesn't seem to let me update my dhcp zone.  Could this be a time issue
> > > between the 2 servers?  I run a master named server that gets updated by the
> > > secondary named server that also run dhcp.  Any help is appreciated??
> >
> >       I see no errors.  The DHCP server asked that the operation only
> >       be performed if the pre-conditions were met.  They were not
> >       met so the operation was not performed.
> >
> >       Mark
>
> Mark
>
> I see that you're with ISC, so I was wondering if you could possibly
> shed a bit more light on this problem.  Presumably there is no error
> on the part of named, but there is an error someplace because the
> dns+dhcp system does not work.  In my case I have the dns & dhcp
> servers on the same machine, and approx 15 clients.  All the clients
> successfully get ip addresses from dhcp, and they all get name service
> from dns.  I set up the dns part using the book 'DNS & BIND' and I set
> up dhcp using the example dhcpd.conf and man dhcpd.conf.  I've tried
> it with and without TSIG.  In all of my trials, both dns and dhcp
> worked fine, but there has never been a successful update to dns (when
> dhcpd issues a new ip number).  Named has never written a journal
> file, and I always get the above messages.
>
> In the case of 'name not in use', what name? and not in use by whom?
> My domain has a name and all clients have names, and they are in the
> zone files as written by h2n.
>
> In the case of 'RRset exists...' it would seem intuative that those
> exist since named is working and issuing name service, and it would
> seem that dhcpd should not demand the non-existence of the things that
> it is supposed to update.
>
> Any help would be appreciated; I want to take this thing to work after
> it works at home, but a year's searching has been futile so far.

Why are you populating your zone files with h2n *and* trying to populate them
dynamically with DHCP+DDNS? Seems like you'd either do one or the other, not both.
I'm not surprised you're getting conflicts that way...


- Kevin