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I don't know where you're getting that IP-level filtering is the only way to "actually implementing URL filtering" - if they're talking about URL filtering as a
by azernik 5y ago
I don't know where you're getting that IP-level filtering is the only way to "actually implementing URL filtering" - if they're talking about URL filtering as a feature of a new DNS infrastructure, then the most likely assumption is that they're talking about DNS-level filtering.
- hdjjhhvvhga 5y agoMy assumption is based on the fact that DNS-based filtering ("of URLs leading to illegal content") simply doesn't work and is trivial to circumvent both by the client and the server, so the countries that block Libgen&co. do so at the ISP level using IP filtering.
- azernik 5y agoIt is trivial to circumvent. And countries and ISPs still do it all the time, because most consumers are not capable of even the trivial step of changing DNS servers. e.g. in the UK blocking is usually just implemented by DNS filter.