502 Bad Gateway

• Solution: review if your php process is running: systemctl status php-fpm

Related

• HTTP 500 Internal Server Error
• HTTP 502 (Bad Gateway)
• HTTP 503 (Service Unavailable)
• HTTP 504 (Gateway Timeout)
• HTTP 526 Invalid SSL certificate

See also

• 5XX, 500, 502, 503, 504, 526, Web troubleshooting
• PHP, php-fpm, www.conf, php -i, PHP sessions, symfony, fastcgi_pass, sessionclean (shell script),phpsessionclean.service (systemd service), phpquery, php.ini, /var/log/php*, PECL, php --help, PHPUnit, Laravel, PHP framework, Composer, phpbrew, Xdebug, php --version, PHP Fatal error, Hello, World! (php), Zend Engine, FROM php
• Web server: Nginx: /etc/nginx/nginx.conf, nginx -t, Nginx logs, Nginx change log, PHP, php-fpm, Let's encrypt, Nginx directives, Reverse Proxy, Configure HTTP redirection Nginx, Return, proxy_pass (Reverse proxy), ngx_http_rewrite_module, /etc/nginx/sites-enabled/, error.log, access.log, /nginx status, AIO