How to disable secondary DNS?

Hi, there are some clients which require you to set a secondary DNS. An example is Amazon's Fire TV: leaving the DNS2 field empty or setting the same IP as the one for DNS1 results in Fire TV using 8.8.8.8 (Google's DNS). Is it correct to set 0.0.0.0 in those cases? Thanks

Try setting both fields to the Pi-hole IP address. Some devices will complain about duplicate IP addressing, but a lot of them will accept the same IP for both entries.

For Fire TV: setting both to the Pi-hole IP address results in the device using Google's DNS as secondary DNS. Fire TV requires a different IP for DNS2.

Sorry, I missed that in your original post. Short answer, try it and see. It won't break anything and you can revert the change if it doesn't work.

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