Mix custom dns and dns from the list

#1

sorry it’s not really a problem with behavior but more a question about how does it work.

Does the custom dns server replace completely the one from the list if some are selected?
Because hen I do a nslookup it gives me a serverFAIL when I entered a bad custom IP and also some dns from the list…

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#2

No. All upstream DNS servers are used. There is an algorithm within Pi-Hole for determining the best performing upstream server as described in this section of the Pi-Hole documentation:

https://docs.pi-hole.net/ftldns/dns-resolver/

What are the specific upstream servers you are using and which one is failing? It would be helpful if you generate a debug log, upload it and post the token here. That will let us see your Pi-Hole configuration and performance.

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#3

Thanks for the clarification!!!
:slight_smile:

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closed #4

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