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Connecting to a remote dnscrypt proxy client from Android Pie using DNS over TLS

Robert J edited this page Dec 30, 2018 · 1 revision

Since Android Pie supports configurable DNS-over-TLS it is very easy to redirect DNS queries from smartphone to your own server running dnscrypt-proxy (with your own blacklists, whitelists, timeblocks, adblocking etc.). No additional app is required.

You will need:

  • server with dnscrypt-proxy of course
  • nginx with stream modules ( build with --with-stream, --with-stream_ssl_module options)
  • open port 853

Just add this snippet to nginx.conf

stream {
    upstream dns-servers {
        server    127.0.0.1:53;
    }

    server {
        listen 853 ssl;
        proxy_pass dns-servers;

        ssl_certificate            /etc/nginx/ssl/dot-server.crt;
        ssl_certificate_key        /etc/nginx/ssl/dot-server.key;

        ssl_protocols        TLSv1.2;
        ssl_ciphers          HIGH:!aNULL:!MD5;
        
        ssl_handshake_timeout    10s;
        ssl_session_cache        shared:SSL:20m;
        ssl_session_timeout      4h;
    }
}

Restart nginx.

In Android Pie go to Settings--Network--Advanced--Private DNS and add the name of your server. This setting will persists for Wifi and Mobile connections.

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