My issue: I’d like HTTP/1.1, HTTP/2 and HTTP/3 on the same port. How I encountered the problem: I have HTTP/1.1 & HTTP/2 running smoothly, but I’m missing something in my server block to get HTTP/3 recognised by multiple online HTTP/3 checkers. Solutions I’ve tried: add_header Alt-Svc 'h3=":$…

HTTP/2 and HTTP/3 on the same `server`

dvershinin February 21, 2025, 7:40am 2

You can follow the instructions at How to install NGINX with full QUIC HTTP/3 support which include details on required steps to configure firewall for HTTP/3 support.

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