FM Field Manual smhansen.dev

FM 2-03 Chapter 2 · Networking

DNS lookup

Query A, AAAA, MX, TXT, CAA and other records over DNS over HTTPS, with DNSSEC flag and TTLs.

Network Sends data to cloudflare-dns.com, dns.google: the name and record type you look up, to the one resolver you pick. Only when you press the button.

Resolver

Will send this request

  • GET https://cloudflare-dns.com/dns-query?name=example.com&type=A

DNS over HTTPS (DoH) sends an ordinary DNS question inside an HTTPS request, so it works from a browser. The resolver you pick sees the name, the record type and your IP address. Nothing else is sent: no cookies, no referrer. Nothing is sent until you press Look up, and failed requests are not retried.

  • No entry in this manual matches “”.

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