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Noob question about PiHole
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this post was submitted on 17 Jan 2024
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Pretty much. Not sure how the router determines which DNS to use, but mine seems to latch onto whichever one serves up results the fastest, which would inevitably be cloudflare direct after the pihole returns enough blocks.
So I use a Raspberry Pi Zero W as a dedicated pihole, and my Pi 4 seedbox acts as its own pihole and as a redundant backup. Then use gravity-sync from the Zero to the 4 to mirror the settings.
Another cool trick is using tailscale to ensure your portable devices always can access your Pihole(s) from anywhere and then setting those server's tailscale addresses as your DNS servers in tailscale.
This way you can always use your DNS from anywhere, even on cell data or on public networks
I keep a third instance of Pihole running on a VPS and use it as the first DNS server in tailscale so it will resolve a bit faster than my local DNS servers when I'm away from home
Huh, I’ll definitely look into that. Both times I tried to route external pihole access, somehow other mystery services found it and it slowed to a crawl from getting absolutely pounded by requests not from me. Thanks for that tip!