> Sounds like you are looking for functionality provided by NOTIFY:
>
> notify yes;


Which is the default.

> You can add this globally in the options{} section of named.conf or turn
> it on for selected zones by adding to the zone config. Both servers need
> this in their config.
>
> You will need to restart named on each, but from that point on, you
> should be able to change the zone on the master and rndc reload
> and have the slave pull the new info.


The usual problems are:
1. failure to update the serial number.
2. Notify messages being sourced from the wrong address.
The address the message is sent from needs to match the
address in the masters clause. See notify-source and
allow-notify.
3. A NAT box not reflecting internal traffic.
See also-notify.
4. NS to address conversion is failing. Check that the
master can resolve the addresses of the nameservers.
5. The wrong nameserver is listed in the SOA record.
Named does not send NOTIFY messages to the nameserver
listed in the SOA record.

> On Mon, 2007-02-05 at 09:38, Lucien GENTIS wrote:
> > Hi to all,
> >
> > I wanted to update my old DNS servers running Bind 9.2.1 under Redhat 8
> > and for that, I installed Bind 9.2.4 under Debian Sarge Stable
> >
> > So Master zones are still under Bind 9.2.2 - Redhat 8
> >
> > When I started my new server, zone files were correctly transfered from
> > the Master;
> > but yet, when I update Master zones, slave zones are not updated, even
> > if I restart Bind on the slave server.
> >
> > There are only 2 manners updating slave zones:
> > --- deleting zone files on the slave server and restart the slave server
> > --- launching command "rndc reload zone"
> >
> > How could I configure Bind for slave Zones being automatically updated ?
> >
> > Thanks
> >
> > Lucien

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