Hello,
Recently I set up a group of nameservers using a hidden master,
visible slaves configuration.
ns0 - hidden master
ns1, ns2, ns3 - visible slave servers
So I set the SOA and NS records like this
zone.example IN SOA ns1.zone.example. hostmaster.example.com (
1 ; serial number
3600 ; refresh [1h]
600 ; retry [10m]
86400 ; expire [1d]
3600 )
IN NS ns1.zone.example
IN NS ns2.zone.example
IN NS ns3.zone.example
Thus, the hidden master, ns0, does not appear in the SOA or NS records.
The problem is that NOTIFY messages do not get delivered to ns1,
because it's the primary server in the SOA record. If i change the
SOA to have ns0, then NOTIFYs work, ns1 updates immediately. I don't
like this solution because my hidden master is no longer hidden when
I'm publishing it in the SOA.
Also, is this normal/expected behaviour? How can i get ns0 (and the
others) to NOTIFY ns1 when the serial is incremented? Must i use an
explicit {also-notify} ?
Thanks,
--
Jonathan
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