Web troubleshooting

• systemctl status php7.2-fpm
• systemctl status nginx

zcat -f /var/log/nginx/access.log* | grep " 504 " | awk '{print $4" "$7" "$(NF-1)}'

Related

• Troubleshooting

See also

• 5XX, 502, 503, 504, 526, Web troubleshooting