Is there an authoritative  DNS server that can be queried? Is there an authoritative...

Topic: Is there an authoritative DNS server that can be queried?

Post Is there an authoritative DNS server that can be queried?
by jason404 on 2020年8月16日

I have firewall update scripts running which continuously poll my DDNS A records for changes. I have the TTL set to the minimum 60 seconds. I use one of the Dynu nameservers, with the aim of getting any changed as soon as possible.

eg.

dig A host.domain.com @ns1.dynu.com +short


However, there seems to be a delay before any change is seem (testing by making changes using the Dynu mobile app). Is there a faster way?

Also, for DNS in general, does an authoritative DNS server not use the TTL value? I assume this is the case as it would not make any sense to me otherwise.

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2024年3月1日 8:27
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