Nginx server with simple proxy pass

nginx-server-proxy

server {
       listen 80;
       server_name mydomain.com *.mydomain.com;
       location / {
              proxy_pass http://otherdomain:9090;
              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;
       }
}