nginx

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Fixing “Upstream Prematurely Closed Connection” Error in Nginx

I. Introduction Nginx is a popular and widely used open-source web server software. It acts as a reverse proxy server for HTTP, HTTPS, SMTP, and other protocols. However, like any software, Nginx is not immune to errors. One of the…

Việt Nam Tutor
02/02/2023

Linux

Upstream prematurely closed connection while reading response header from upstream

This problem happened because your upstream (php, php-fpm) max_execution_time is shorter than proxy_connect_timeout in your nginx proxy. For example: In my php.ini: But in mysite.conf have: Then I got in error.log of nginx: [error] 117#117: *434 upstream prematurely closed connection…

Việt Nam Tutor
29/08/2022