Re: [cobalt-users] DNS Serial Numbers

[Gerald Waugh <gwaugh@xxxxxxxxxxxxxxxxxxxxxxx>]

> >
> > IIRC setting the serial number to 0 on the master no longer works in
> > recent bind versions.
>
> Shouldn't the serial number be done as the date +??

There can be a problem in bind, if the slave zone's serial number is lower
than the master the slave will never update.

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http://library.n0i.net/linux-unix/applications/daemons/bind9-arm/Bv9ARM.ch08.html#AEN4200
====
The solution to this is to add 2147483647 (2^31-1) to the number, reload
the zone and make sure all slaves have updated to the new zone serial
number, then reset the number to what you want it to be, and reload the
zone again.
====
Which is why when you edit the master zone file, you increment the serial number.
The format is normally (doesn' have to be) the YYYYMMDDnn (the nn being
the changes to the zone file for that date.

Gerald
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