Experiment With HTTP/3 Using NGINX And Quiche

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% git clone --recursive https://github.com/cloudflare/quiche

Next you’ll need to apply the patch to NGINX:

% cd nginx-1.16.1 % patch -p01 < ../quiche/extras/nginx/nginx-1.16.patch

And finally build NGINX with HTTP/3 support enabled:

% ./configure \ --prefix=$PWD \ --with-http_ssl_module \ --with-http_v2_module \ --with-http_v3_module \ --with-openssl=../quiche/deps/boringssl \ --with-quiche=../quiche % make

The above command instructs the NGINX build system to enable the HTTP/3 support ( --with-http_v3_module) by using the quiche library found in the path it was previously downloaded into ( --with-quiche=../quiche), as well as TLS and HTTP/2. Additional build options can be added as needed.

You can check out the full instructions here.

Running

Once built, NGINX can be configured to accept incoming HTTP/3 connections by adding the quic and reuseport options to the listen configuration directive.

Here is a minimal configuration example that you can start from:

events { worker_connections 1024; } http { server { # Enable QUIC and HTTP/3. listen 443 quic reuseport; # Enable HTTP/2 (optional). listen 443 ssl http2; ssl_certificate cert.crt; ssl_certificate_key cert.key; # Enable all TLS versions (TLSv1.3 is required for QUIC). ssl_protocols TLSv1 TLSv1.1 TLSv1.2 TLSv1.3; # Add Alt-Svc header to negotiate HTTP/3. add_header alt-svc 'h3-23=":443"; ma=86400'; } }

This will enable both HTTP/2 and HTTP/3 on the TCP/443 and UDP/443 ports respectively.

You can then use one of the available HTTP/3 clients (such as Chrome Canary, curl or even the example HTTP/3 client provided as part of quiche) to connect to your NGINX instance using HTTP/3.

We are excited to make this available for everyone to experiment and play with HTTP/3, but it’s important to note that the implementation is still experimental and it’s likely to have bugs as well as limitations in functionality. Feel free to submit a ticket to the quiche project if you run into problems or find any bug.

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