Nginx forwarding rule

server {
    listen 80 ;
    listen 443 ssl;
    server_name oldserver.com;
    ssl_certificate /var/www/oldserver.com/cert/server.crt;
    ssl_certificate_key /var/www/oldserver.com/cert/server.key;
    rewrite ^ $scheme://newserver.com$request_uri? permanent;
}