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Introduction to DNS encryption and browser enable DNS over Https

DNS encryption mode


DNS over HTTPS: Encrypted DNS
over port 443 DNS over TLS: Encrypted DNS dnscrypt over
port 853: Developed by third parties, clients need to import public keys, using fewer
people DNSSEC: only prevent tampering with IP, can not encrypt data


Regular users recommend DNS over HTTPS


DNS over TLS due to the use of port 853, it is easy to be blocked by the middleman, falling to port 53 and making the encryption invalid.
DNS over TLS malicious traffic is easily defended against and website maintainers are usually willing to opt for this approach.
For ordinary users, privacy is more important, DNS over HTTPS uses port 443, basically will not be blocked.
(It is not excluded that your domain name will enjoy the highest treatment in the mainland like Google)


The browser enables DNS over HTTPS


Chrome sets DNS over HTTPS


Chrome67 version (recommended version 78) can already use DNS over HTTPS, directly set it

chrome://flags/#dns-over-https


Firefox sets DNS over HTTPS


Firefox62 can already use DNS over HTTPS
to open about:config, modifying the following parameters

network.trr.mode = 3
network.trr.uri = https://mozilla.cloudflare-dns.com/dns-query


Android sets DNS over TLS


Android 9 directly sets up private DNS

Service providers that support DNS over HTTPS


  • Cloudflare: https://cloudflare-dns.com/dns-query

  • Google RFC 8484: https://dns.google/dns-query

  • Google JSON API: https://dns.google/resolve

  • Secure DNS EU: https://doh.securedns.eu/dns-query

  • Quad 9: https://dns.quad9.net/dns-query

  • Quad101: https://dns.twnic.tw/dns-query

  • dns.sb: https://doh.sb/dns-query

  • Cloudflare Tor: https://dns4torpnlfs2ifuz2s2yf3fc7rdmsbhm6rw75euj35pac6ap25zgqad.onion/dns-query


Several DoH addresses in Asia are recommended


  • https://doh-jp.blahdns.com/dns-query #Japan linode

  • https://asia.dnscepat.id/dns-query #Japan linode

  • https://public.dns.iij.jp/dns-query #Japan iij

  • https://doh.eastas.pi-dns.com/dns-query #Japan choopa

  • https://doh.mullvad.net/dns-query #需要自定义23.89.5.60


DoH accessed using IP addresses (recommended)


In exchange for the cloudflare's IP address is reliable, recommended

  • https://185.222.222.222/dns-query

  • https://45.11.45.11/dns-query

  • https://1.1.1.1/dns-query

  • https://1.0.0.1/dns-query

  • https://162.159.36.1/dns-query

  • https://162.159.46.1/dns-query

  • https://2606:4700:4700:0000:0000:0000:0000:1111/dns-query

  • https://2606:4700:4700:0000:0000:0000:0000:1001/dns-query

  • https://2606:4700:4700:0000:0000:0000:0000:0064/dns-query

  • https://2606:4700:4700:0000:0000:0000:0000:6400/dns-query

Reference site:
https://www.ghacks.net/2018/04/02/configure-dns-over-https-in-firefox/
https://en.wikipedia.org/wiki/DNS_over_HTTPS
https://kb.adguard.com/en/general/dns-providers
https://developers.cloudflare.com/cloudflare-one/connections/connect-apps/install-and-setup/installation
https://developers.cloudflare.com/1.1.1.1/other-ways-to-use-1.1.1.1/dns-over-tor#setting-up-a-tor-client


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2024-03-07

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