allow-transfer not covering ixfr requests?

Tom Schmitt TomSchmitt at gmx.de
Tue Sep 27 20:03:44 UTC 2011


> 
> The odd part is that both NS3 and NS4 weren't able to request ixfr
> transfers. 
> Shouldn't allow-transfer cover these kind of transfer requests as well?
> 


First: Do you have statements "provide ixfr;" and "request ixfr;" in your config?

Second: To do a ixfr a server is first sending a query for the SOA of the zone to determine if a update is necessary. If your servers aren't allowed to do a query, how should they get the SOA? And without a SOA, you don't have the serial number of the zone, so you can't do IXFR.

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