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thanhtien19's avatar
thanhtien19
Iron Contributor
Sep 25, 2022

How to configure to cache public domain long time

We have DNS server Internal and recursive for public domain , but when when show cache dns i see seem it only cache about 5 minus. How to can all public domain cache than 1 hour  
  • Harm_Veenstra's avatar
    Sep 25, 2022
    It's the TTL of the record in the public DNS, how the record is registered there is important. The record seems to have a TTL of 5 minutes, you can cache all you want... But it the public record has a TTL of 5 minutes and it changes, then it would be nice if you received that updated record instead of trying to keep on to a possibly outdated record 😉

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