DNS over Quic

[Sami32]

https://www.ietf.org/rfc/rfc9250.html

[ptrd]

I created a Proof of Concept by extending the dig tool with a -Q option, see https://github.com/ptrd/dnsjava/commits/doq/

There is quite some duplicate code in SimpleDoqResolver that I had to copy from SimpleResolver, so I guess there is some refactoring to do to make SimpleResolver more extensible and git rid of the copied code.

The PoC simply creates a new QUIC connection for every request. Of course this should be changed for a final implementation, reusing an existing connection or using session resumption when the connection was closed. I'm happy to implement this, but let's first see what you (@ibauersachs) think of it.