DNS over HTTPS / .well-known in path


#1

Recently, Firefox team announced that they will use Cloudflare DoH service and there was an insightful blog post by Daniel Stenberg:
https://daniel.haxx.se/blog/2018/06/03/inside-firefoxs-doh-engine/
Example of using dns2doh tool is using path containing .well-known

I did install Firefox Nightly to try it out, and about:config shows that Firefox is using this path:
network.trr.uri;https://dns.cloudflare.com/.well-known/dns

Official documentation references only simple /dns-query path:


Cloudflare proxy also uses /dns-query without .well-known:

Are /.well-known/dns-query, .well-known/dns and /dns-query different somehow? Or exactly the same?


#2

/.well-known was used in early drafts, but dropped in later drafts.


#3

Thanks to jedisct1 mention of RFC drafts, I did some research on DoH and found this: https://github.com/dohwg/draft-ietf-doh-dns-over-https/issues/24
Discussion from issue and -02 draft (HTTP2 server push part) completely answer my question.


#4

This topic was automatically closed after 14 days. New replies are no longer allowed.