How to block DoH without blocking other Cloudflare services: ngrep -K 100 http://cloudflare-dns.com 'dst 1.1.1.1 and tcp port 443' - Because SNI.
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Use https:\\1[.]1[.]1[.]1 doesn’t help either. The IP is visible in the SNI information sent by your client.
5:39 AM - 17 Jul 2019
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