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I did that. Then saw that filtering was inconsistent. It turns out that some systems treat the DNS list as alternatives, not as primary and failover. The spec

by josho 3y ago

I did that. Then saw that filtering was inconsistent. It turns out that some systems treat the DNS list as alternatives, not as primary and failover. The spec only says the dns IPs should be specified in preference order. Nothing says to treat it as primary and failover.

geerlingguy 3y ago
Yeah, far too many devices and apps seem to use DNS in a more round robin fashion. Too inconsistent for my liking.
magicalhippo 3y ago
Oh wow that might explain why my SO is sometimes filtered and sometimes not. I've got her on an exclusion list because she just cares about being able to click on Google ads also known as "search results". But I might not have added her on the backup Pihole now that I think of it...