Hi,

I would like to ask whether *a slave* for a zone "example.com", say 10.10.10.5 (whose master - and the zone's primary master - is e.g. 10.10.10.2), can be configured *at the same time* as master for the same zone (example.com) with other slaves (e.g. 10.10.10.10 & 10.10.10.11) which would be configured as slaves of 10.10.10.5 (slaves of a slave), provided that the backend supports master/slave functions. Is "also-notify" supported? (I see in the documentation release notes that "/Infrastructure for 'also-notify' statements added/", but does "also-notify" behave as in BIND9?)

For example, for the BIND backend, is it supported to have in named.conf of 10.10.10.5:

   zone "example.com" {
       type slave;
   file "db.example.com";
       masters { 10.10.10.2 };
       notify yes;
       also-notify { 10.10.10.10; 10.10.10.11; };
   };

In BIND9, with this configuration, the 10.10.10.5 slave would receive (NOTIFY - if supported by 10.10.10.2 backend - and) AXFRs from 10.10.10.1 but it would also send NOTIFY messages to 10.10.10.10 and 10.10.10.11 which are configured to have 10.10.10.5 as a master, and it would also send AXFRs to them, even if they are not included in the zone's NS records (if the are, also-notify would not be needed). With this setup, would pdns on 10.10.10.5 send such NOTIFY messages (and, subsequently, AXFRs) to 10.10.10.10 and 10.10.10.11 ?

Thanks,
Nick
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