location /ws { proxy_http_version 1.1; proxy_set_header Upgrade "websocket"; proxy_set_header Connection "Upgrade"; proxy_set_header Host $host; proxy_set_header X-Real-IP $remote_addr; proxy_set_header X-Forwarded-For $proxy_add_x_forwarded_for; proxy_redirect off; proxy_pass http://unix:/run/plesk-web-socket/ws.sock:/; }