PiFi, wireguard VPN and Adguard?

General
1

Love the idea of this product. I have a few Pi 4’s sitting around doing nothing and thinking this could turn one of them into a vpn travel router. I do have one concern though. I’m considering purchasing the pifi kit. I noticed the firmware comes pre-installed with adguard. I run my own vpn server and on that server is also adguard. Obviously I don’t need two dns servers and I’m thinking this could create a conflict. If I connect to my vpn server which is running it’s own adguard, will your adguard instance conflict and cause an issue? It’s a bit confusing. Is the adguard on your firmware only used if not connecting to a vpn and if connecting to a vpn it will use the wg tunnel dns as set in the wireguard config file?

Thanks

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2

By default, PiFi uses AdGuard Home for DNS resolution (which can have protection enabled/disabled) or AGHome can be totally disabled

However, when connected to VPN - by default - it uses the DNS specified in the VPN Config File (unless Force DNS is turned on in settings)

So it shouldn’t be a conflict when using VPN, should use whatever is defined in the config file by default

3

This is as I understood it. Thanks for the clarification. One more question, will this work with Pi4 2 or 4gb model? And the Pi4 does run hot. Can this run ok in a case without a fan for extended periods of time? Thanks

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4

It will work with all Pi 4 models (and with firmware that we release on likely Friday all Pi 5 models too including new released models)

With temp - it can depend, I run mine without a fan and it doesn’t run particularly hot, but have heard others saying they prefer to run with fan so perhaps depends.

One major recommendation I have for temp is to use the minimum recommended power supply (as PiFi USB is a USB 3.0 accessory so higher power draw that Raspberry Pi on its own) so for Pi 4 that is a 5v3a power supply. Using an underpowered adapter can cause it run hotter.

5

This is very helpful response. Thank you!

6

Would PiFi run fine on a Pi4 2gb Ram model or better on the 4gb? Does the additional ram really matter for this single limited use case? Meaning just using the Pi4 as a router. My vpn would be wireguard which does fine on minimal RAM compared to OpenVpn.

7

Honestly, it doesn’t matter too much at all.

Even 1Gb Pi 4 runs fine - WireGuard more dependent on CPU than RAM so you should be fine with any (particularly with WireGuard)

I think future iterations of PiFi might have extensions where more RAM could be handy, but just now for router/VPN/ad blocking etc I wouldn’t feel the need for more RAM

8

Great, this is my thinking also. Appreciate the clarification. Do you currently sell PiFi on Amazon or planning to? Thanks!

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9

Yes, it’s now available on Amazon too in US & UK

:us: USA: PiFi on Amazon.com
:uk: UK: PiFi on Amazon.co.uk

10

Fantastic, just ordered one on Amazon US. Thanks for the support. :slight_smile:

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11

I suggest adding the Amazon links to your order page as an additional purchase option.

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12

What case are you using?

13

I’ve got a few Pi’s - on my Pi 5 I use official case + fan (one is the white one, one black)

On Raspberry Pi 4 I have one using the Flirc case and one with just the official Raspberry Pi case (but the dark one)