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Your setup will still work. Firefox is configured with a "fallback" situation, where anything that doesn't resolve on the public resolver will be queried again
by qmarchi 7y ago
Your setup will still work. Firefox is configured with a "fallback" situation, where anything that doesn't resolve on the public resolver will be queried again using your system-configured DNS options.
As for Pi-hole, my recommendation is to block NATed traffic to Cloudflare's DoH traffic (forcing it into Fallback mode) and then setting up Pi-Hole to use for it's recursive resolution.
Alternatively, you can setup your own DoH server based off BIND: https://terminaladdict.com/networking/linux/2019/09/13/DoH.html https://terminaladdict.com/networking/linux/2019/09/13/DoH.h...