Running UDP via server Cron

It was suggested from our web host that we should run wp-cron via the server instead of via WP itself. They provided the following code: wget -q -O – http://delawarestatenews.net/wp-cron.php?doing_wp_cron >/dev/null 2>&1. But now, besides other things, UDP is not processing daily backups. We get this error: Warning: The scheduler is disabled in your WordPress install, via the DISABLE_WP_CRON setting. No backups can run (even “Backup Now”) unless either you have set up a facility to call the scheduler manually, or until it is enabled. Go here for more information.

What is the prescribed method for running UDP via a server cron?

https://wordpress.org/plugins/updraftplus/