gistfile1.txt

server {
    listen 80;
    server_name domain.com www.domain.com;
    location / {
        proxy_pass http://anotherdomain/index.html;
        proxy_set_header  X-Real-IP $remote_addr;
    }
    
    location ~ ^/(.*\Z) {
        rewrite ^/(.*) http://domain.com permanent;
    }
}