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by jagged-chisel 898 days ago
> They'd have to use a packet filter to do that

Indeed they would.

> My resolver respects DNS signing…

I’m not honestly certain how big of a hurdle this is. I would figure that if a site is to be blocked, then the ISP substitutes their own “authoritative” response, which would include cryptographic signing details (even pretending their public key is the official one.)

> My (niche) ISP is rather benevolent …

I think most are. In my market, even the big guys haven’t done this, though I have heard about it happening in larger markets when big ISPs are up to no good (like inserting ads or whatever.)