Now you can redirect cpanel.yourdomain.com, whm.yourdomain.com ,webmail.yourdomain.com and webdisk.yourdomain.com without any issues in an nginx server. You can add it to your current nginx configuration as follows,
# wget http://download.sysvm.com/update/cpanelproxy.conf
# mv cpanelproxy.conf /etc/cpnginx/
Now login to whm -> Plugins -> cPanel Nginx -> Advanced configuration editor , and add the following line after the include line of
/usr/local/nginx/conf/vhost.conf
include “/etc/cpnginx/cpanelproxy.conf”;
Now restart nginx server /etc/init.d/nginx restart
This fix will be available from the cpnginx version 2.1 .