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How do I firewall all telemetry?
How can I block all network requests that look like telemetry at the network level?
I realize that "looks like telemetry" is a nebulous definition - it would probably involve a lot of custom logic. I am willing to maintain my own rulesets, so long as I have a generic starting point. I don't want to catalog all the telemetry signatures unless there's a very convenient way to do it.
A system like this would always have some false positives/negatives, so there should be a convenient way to add both temporary and permanent exceptions as needed.
I don't want to hunt down the telemetry setting of each program I use individually, turn it off, and hope it works.
1 answer
Nearly all telemetry requests are domain name based, so a good network wide adblock will do this. I'm using adguard home - and the standard filter handles that. Considering the CDNs and such it works a lot better and cleanly. It is network wide (or I guess you can run it locally or in a VM and use that as your DNS server?) .
Doing it as a firewall for most home users is... probably not worth the effort, without some sort of automation and a good maintained blocklist, which is what pihole (as suggested in the comments) and Adguard home do.
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