php-fpm

nginx 502 Bad Gateway

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1.0 502 Bad Gateway

nginx 502 Bad Gateway

After the update of Linux on the web server, the website would not open in the browser. Instead the following error was displayed.

502 Bad Gateway
nginx/1.14.0

2.0 Solution

First we check the nginx server.

$ systemctl status nginx
● nginx.service
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Nginx installation and configuration

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The configuration is nginx HTTP server, PHP FastCGI Process Manager (PHP-FPM), and the Alternative PHP Cache (APC).

Installation

The first step is to download the nginx software from the Nginx website. If using the Ubuntu distribution, following are the steps,

(i) Download the nginx signing keys from the Nginx website,

$ wget http://nginx.org/keys/nginx_signing.key… Read more