Cloudflare Error 521: Proxmox Host and VM with Web Servers Are Down
Kiến Thức Khác
Cloudflare Error 521: web server is down
Things to check:
Check Error Logs
Check All Services is running ( Nginx, PHP-fpm, mysql )
Check Firewall Forwarding Rules
Check Cloudflare DNS Records
Check Domain Expired
My Host infrastructure:
Host Pro...
