[mutt2016]

If there is no opt out I have a slightly used Roku for sale.

[emacsen]

There's a reason I have my Roku on an Adguard network

[stantaylor]

I run PiHole on my home network, but it's not my default DNS server (for technical and other reasons); I have to configure custom DNS. I'm disappointed that I can't do that with my Roku devices.

[emacsen]

I have a specific appliance network, designed exactly for this. My computers don't live on that network, but things that I demand not spy on me lives there.

Adguard is basically the same as Pihole. They run the same way, and are both FLOSS.

But Adguard runs right on my router.

[olyjohn]

DHCP can certainly do that for you. Set up a reservation, and assign that MAC a specific DNS server.

[barbazoo]

I'm pretty sure all these devices or apps on those devices configure their own DNS servers these days.

[4oo4]

Not necessarily, I've had good luck with DNS blocking my Roku at least. I was surprised since I expected it to have hardcoded DNS. I'm sure that Chromecasts are propbably hardcoded to 8.8.8.8. It's probably not possible or easy to do with a consumer router, but if you had a Linux router (or something enterprise-y), you could do a NAT rule similar to this to force something to go to your own DNS server:

    iptables -A PREROUTING -s <IP of device> -d 8.8.8.8 -p udp -m udp --dport 53 -j DNAT --to-destination <IP of custom DNS>:53

I hope the NextDNS privacy blocklist for Roku can deal with these.