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An implementation of a forwarding DNS proxy for using Google's DNS-over-HTTPS service with conventional applications.
Currently does no caching or particularly sensible parsing, and supports only A and AAAA records (as no API to convert them to Go-DNS format is yet written, and the Google API is still in flux).
Just run it! Remember if you're behind a corporate proxy you will need to set your http_proxy and https_proxy environment variables to contact the Google DNS servers through them. It might also be advisable use a local caching proxy in front of this if it's going to be a daily driver.
By default it binds to port 53, so if you have a local resolver it will fail to start. You can test it by binding to a high port and using dig like so:
dns-over-https-proxy -debug=true -address=127.0.0.1:8500 -log.level=debug
and then running dig will produce output similar to the below:
$ dig -p 8500 @127.0.0.1 google.com ; <<>> DiG 9.9.5-11ubuntu1.3-Ubuntu <<>> -p 8500 @127.0.0.1 google.com ; (1 server found) ;; global options: +cmd ;; Got answer: ;; ->>HEADER<<- opcode: QUERY, status: NOERROR, id: 54973 ;; flags: qr rd ra; QUERY: 1, ANSWER: 6, AUTHORITY: 0, ADDITIONAL: 0 ;; QUESTION SECTION: ;google.com. IN A ;; ANSWER SECTION: google.com. 299 IN A 74.125.23.100 google.com. 299 IN A 74.125.23.113 google.com. 299 IN A 74.125.23.101 google.com. 299 IN A 74.125.23.102 google.com. 299 IN A 74.125.23.138 google.com. 299 IN A 74.125.23.139 ;; Query time: 1302 msec ;; SERVER: 127.0.0.1#8500(127.0.0.1) ;; WHEN: Fri Apr 15 02:26:09 AEST 2016 ;; MSG SIZE rcvd: 184
- the powerful Go dns library by Miek Gieben
- dns-reverse-proxy on which this code was originally derived.