Hi, I'm a PHP-FPM maintainer and some FPM users have issues with missing host header when using HTTP/3: https://github.com/php/php-src/issues/13021 . This is not an nginx issue as correctly noted in https://trac.nginx.org/nginx/ticket/2281 but it would be nice to have fastcgi_param set for getting host in default config. I was thinking how to best expose $host and REMOTE_HOST seems logical and so I think it could be useful addition. I can update FPM to also set REMOTE_HOST from HTTP_HOST if REMOTE_HOST is not set which would make it even more available for HTTP/1.1 and HTTP/2 users.
Please let me know what you think! # HG changeset patch # User Jakub Zelenka <bu...@php.net> # Date 1705078404 0 # Fri Jan 12 16:53:24 2024 +0000 # Node ID 1ff2f737bd318a730d0944a6037c8fd7c7da2656 # Parent ee40e2b1d0833b46128a357fbc84c6e23be9be07 Added REMOTE_HOST parameter to fastcgi_params. When HTTP/3 is used, users will no longer get HTTP_HOST as host header is no longer set by most clients. It is useful / necessary for many setups to have such information and REMOTE_HOST is defined in CGI/1.1 for such purpose. diff -r ee40e2b1d083 -r 1ff2f737bd31 conf/fastcgi_params --- a/conf/fastcgi_params Mon Dec 25 21:15:48 2023 +0400 +++ b/conf/fastcgi_params Fri Jan 12 16:53:24 2024 +0000 @@ -17,6 +17,7 @@ fastcgi_param REMOTE_ADDR $remote_addr; fastcgi_param REMOTE_PORT $remote_port; +fastcgi_param REMOTE_HOST $host; fastcgi_param SERVER_ADDR $server_addr; fastcgi_param SERVER_PORT $server_port; fastcgi_param SERVER_NAME $server_name;
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