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upstream prematurely closed connection

Fixing “Upstream Prematurely Closed Connection” Error in Nginx

By Quản trị Server, Hosting - Domain, Linux No Comments

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 most common errors that Nginx users encounter is the “upstream prematurely closed connection” error. In this article, we will discuss…

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