Error when I apply http3 to another server site

Question

Hello everyone.

I followed the tread for activating HTTP3 on one of the sites I have under Webinloly, everything went as expected, the network analysis now returns that that site is delivered in HTTP3.

When I try to activate it, on another site, upon checking the correctness of the configuration file (nginx -t) the response from nginx is:

nginx: [emerg] duplicate listen options for 0.0.0.0:443 in /etc/nginx/sites-enabled/sitename.

Specifically to the line containing this directive:

listen 443 quic reuseport;

When restarting nginx in these conditions it produces an error and no site is available anymore.

Any ideas about it?

Answer 1

Let me Google that for you:

• https://mailman.nginx.org/pipermail/nginx-devel/2020-November/013587.html
• https://trac.nginx.org/nginx/ticket/1912
• Or a more non-dev friendly explanation: https://stackoverflow.com/questions/76348128/enabling-quic-http-3-on-multiple-domains-with-nginx-1-25