this post was submitted on 08 Nov 2023
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Blocked that hard-coded google dns garbage.

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[–] CorrodedCranium@leminal.space 12 points 2 years ago (11 children)
[–] AdventuringAardvark@lemmy.one 22 points 2 years ago (6 children)

No, you can block ads with a pihole. This is because Roku hard codes its dns server as 8.8.8.8. Pihole doesn’t handle IP addresses, only DNS.

[–] IlliteratiDomine@infosec.pub 9 points 2 years ago (5 children)

Interesting. I set an adblocking dns via DHCP and, as far as I know, the Roku respects it. Ads are blocked and I can see it failing to delivery telemetry in my dns logs (most persistent thing on the network).

I set a rule to catch outside dns to see if anything, the roku included, has been misbehaving.

[–] IlliteratiDomine@infosec.pub 3 points 2 years ago

Well, I'm back and can confirm the sneaky DNS resolver. I have two roku devices and they both were making requests to 8.8.8.8.

Thanks for this post! TIL.

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