Pi-hole

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The Pi-hole® is a DNS sinkhole that protects your devices from unwanted content without installing any client-side software.

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Which is the smallest / minimal independent device that can run a pihole? (lemmy.world)

submitted 6 days ago by Maroon@lemmy.world to c/pihole@sh.itjust.works

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The smallest device I have known that can run a pihole is a raspberry pi zero. But I feel it is possible have a device so small, it can be powered from the same Ethernet cable that connects to the router and still be a DNS sinkhole.

Any ideas or suggestions for experimentation?

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[–] IcedRaktajino@startrek.website 3 points 6 days ago* (last edited 6 days ago) (1 children)

AFAIK, PiZero like you said.

If your router has a USB port and can recognize USB ethernet devices, then you can get one of those USB adapter boards and connect the Zero directly to the router and configure the Pi to be an ethernet gadget (power and network both over USB). If the router has a USB port but can't handle USB ethernet devices, you could still power the Pi over that USB port and connect the two over wifi.

Once you add an ethernet port and its supporting components to just about any board, it almost immediately becomes as large as or larger than a Pi Zero.

can be powered from the same Ethernet cable that connects to the router

Ethernet doesn't carry power on its own unless you're running PoE. You can get a PoE hat for the Pi, but it adds quite a bit of bulk.

My router is an x86 box running OpenWRT, so I just run Docker on it which runs PiHole and a couple other small services.

[–] Zachariah@lemmy.world 2 points 6 days ago

Yeah, a virtualized device is the smallest.