Hello Feng He,
Feng He fen...@nsbeta.info writes:
Is there a way to dynamic update the zone's default TTL by nsupdate?
A default TTL (example $TTL 3600) is a property of a zone file on disk,
it is a control statement read by the BIND name server when loading the
zone file.
The default TTL is applied to all resource records that do not have a
dedicated TTL defined. After loading the zone, every resource record
will have a dedicated TTL and there is no default TTL in a loaded zone
(in memory).
Because there is no concept of a default TTL in a loaded zone, you
can only change the dedicated TTLs on each individual resource record
using the nsupdate tool.
Best regards and a good new year!
Carsten Strotmann
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