nsd users - Aug 2018 - How to dynamically add and remove zones?

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On Tue, Aug 28, 2018 at 02:35:43PM +0200, kaulkwappe at prvy.eu
wrote:
> What is the exact reason for this behaviour? Shouldn't slave servers
always
> provide the same data as the master?
absolutely, but the servers' roles are assigned per zone rather than being
designations per server.  Data are transferred via [AI]XFR per zone.
Assigning a role to the server is a configuration issue not covered
in the core DNS protocol.

-Peter

On 28/08/2018 14:35, kaulkwappe at prvy.eu wrote:
> What is the exact reason for this behaviour? Shouldn't slave servers
always
> provide the same data as the master?
There's nothing in the DNS protocol to tell one DNS server to become a
slave of another for a particular zone. DNS server configuration is
*independent* of the protocol. The operator has to tell a DNS server
which zones to serve, and whether they are master zones or slave zones.

Some DNS servers, such as PowerDNS have features to allow a master to
configure slaves automatically, but this is not a standard feature, and
NSD certainly does not have this feature.

Regards,
Anand