[nsd-users] test setup problem: secondary expires zones

Toni Mueller support+nsd at oeko.net
Fri Feb 17 15:17:14 UTC 2012


On Thu, Feb 16, 2012 at 11:15:41AM +0100, Matthijs Mekking wrote:
> It turns out that axfrdns/djbdns does not implement RFC1995, IXFR. It
> will respond to an IXFR query with NODATA. NSD marks this packet as
> bad (too short) and it will retry again later.
> To make NSD deal better with this, I have committed a change to the
> NSD3 branch. NSD will fallback to query AXFR, if an IXFR request
> results in a NODATA response. This behavior will not interfere with
> the 'allow-axfr-fallback' option: if that is set to no, there will
> still be no fallback to AXFR.

thank you for your analysis.

I found a patch that makes axfrdns treat IXFR the same way as AXFR (ie,
respond with a full zone).

Kind regards,

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