this post was submitted on 05 May 2025
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Don't fall for the trap that they recommend an expensive Pi 5: I am running Pi-hole on a Pi 2 but you can basically run this on obsolete hardware, whether that's a Pi or a PC/laptop
Can confirm. I have 10 year old pi2 that is dedicated to pi hole and even that is not utilizing all of its 1gb of memory
I'm running Pi-hole and Pi-VPN on a Zero W (using a Geekworm case w/RJ45). It's not very taxing at all.
I also run two other Pi-hole instances in my server cluster (one in Docker and one in an LXC container). Mostly just for uptime reasons, so I can take any one of them down at any time to perform maintenance and/or upgrade.
I run mine on a PI 0. Also use it as a samba disk partition for transferring files.
No performance impacts on regular browsing? I never dared to run a DNS on a wifi only device. Or are you using some kind of Ethernet over USB thing?
I’m running mine on a pi 0. Very slight latency difference - like 2-3ms. Totally worth it for blocking 30% of garbage on average. The decrease in time it takes to load anything more than makes up for the latency. We have over 20 devices on wifi. Both my son and I play online games and the only time I blame lag is when I suck lol.
I figured the latency would be no greater then going out to default dns, maybe a bit less.
You may even be able to run it on a NAS. My NAS supports docker, which means I can run a pihole on it. I have a Pi 3b as my dedicated primary, but my NAS runs as a backup.