proxydoh

Simple server that supports proxying DNS queries over HTTPS as specified in DNS Queries over HTTPS (DoH)

DNS queries are sent as GET or POST requests using DNS wire format to HTTPS server providing DNS resolution. If the server provides Cache-Control header proxydoh will use max-age value for it's own internal cache, this avoids additional network hops for DNS queries for the same host.

Usage

% ./proxydoh -h
Usage of ./proxydoh:
  -debug
        Run the server in debug mode
  -dohserver string
        Set HTTPS server to receive DNS requests (default "https://cloudflare-dns.com/dns-query")
  -host string
        Server listen address (default "0.0.0.0")
  -httpMethod string
        Request method used when sending DNS query to HTTPS server (default "GET")
  -port int
        Server listen port (default 5553)

With proxydoh running, send it a DNS query.

dig @::1 -p 5553 google.com