On 11/5/2019 10:51 AM, John Levine wrote: > In article <[email protected]> you write: >> Note that port 853 is a convention. Servers could trivially run multiple >> services over port 443, and demux based on the ALPN. I suppose that if >> we see a lot blockage of port 853, servers will just do that -- run on >> port 443, demux based on ALPN="DoT"... > If you're going to do that, it's probably easier to have your client > add https headers and do DoH than to add a DoT switch to the ALPN > code in your web server.
It depends on the server. I am currently testing a QUIC server that can support multiple ALPN. That was pretty useful during the development of HTTP3, because the server could support both HTTP 1.0 and HTTP 3 over QUIC. I am designing the support for DNS over QUIC in that code, and I plan to use the same code for receiving DNS requests natively in QUIC streams or through HTTP POST operations. On the client side the code is markedly simpler without the HTTP overhead. -- Christian Huitema _______________________________________________ dns-privacy mailing list [email protected] https://www.ietf.org/mailman/listinfo/dns-privacy
