server {
    listen 80;
    server_name domen.com www.domen.com;


    location / {
        proxy_pass_header Server;
        proxy_set_header Host $http_host;
        proxy_set_header X-Real-IP $remote_addr;
        proxy_set_header X-Forwarded-For $proxy_add_x_forwarded_for;
        proxy_set_header X-Forwarded-Proto $scheme;
        proxy_pass http://192.1.1.1;
    }

    error_page 500 502 503 504 /50x.html;
    location = /50x.html {
        root  /usr/share/nginx/html;
    }
}