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It seems like curl packed with ubuntu does not have http3 support. How do I enable http3 in curl?

Cherona
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3 Answers3

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I found it easiest to use the ymuski/curl-http3 docker image:

docker run --rm ymuski/curl-http3 curl --http3 https://example.org/

Note: Unlike other HTTP/3 clients, curl will not access the page using legacy HTTP first to find out its HTTP/3 location in the Alt-Svc header. This means that if HTTP/3 is listening on another host/port, you will have to use that host/port in the curl call.

Candid Dauth
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You will have to Build the experimental Version, It hasn't been released as a package.

 cd ..
 git clone https://github.com/curl/curl
 cd curl
 ./buildconf
 LDFLAGS="-Wl,-rpath,<somewhere1>/lib" ./configure --with-ssl=<somewhere1> --with-nghttp3=<somewhere2> --with-ngtcp2=<somewhere3>
 make
Error404
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EODCraft Staff
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I created a static cURL with HTTP/3 support for Linux with 12 architectures and macOS. You can take a look at it. It is compiled by GitHub Actions.

https://github.com/stunnel/static-curl

xhp4f
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