What is the refresh rate for the DNS service?

presales

forum:trinopoty 6 years, 11 months ago

I know that the refresh rate for the master zone is 15 minutes, i.e, the servers apply changes every 15 minutes.

What is the refresh rate for slave zones?

They take updates when you send them a NOTIFY, and at the SOA record's configured refresh interval.

The authoritative servers also do a certain degree of caching, so some clients may get some older records for some amount of time.

When I send a NOTIFY, will the server refresh immediately or every 15 minutes like a master zone?

Immediately.

I see. Thank you for the information.

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