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[dns-wg] Changes to Time-to-Live (TTL) values in reverse DNS zones

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Anand Buddhdev anandb at ripe.net
Mon Apr 11 14:44:40 CEST 2022

Dear colleagues,

In 2021, we announced a plan to change the time-to-live (TTL) values in
the reverse DNS zones that we maintain. You may view the announcement here:

https://www.ripe.net/ripe/mail/archives/dns-wg/2021-November/003928.html

Many members of the community expressed support for our proposal.
Therefore, we are going to make these changes next week on Wednesday 20
April. We will lower the TTL of NS records to 86400 (1 day) and that of
DS records to 3600 (1 hour).

Note that the TTL of records imported from other Regional Internet
Registries (RIRs) will not be affected. Those records will be imported
with the TTLs as published by the origin RIR.

Regards,
Anand Buddhdev
RIPE NCC

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