by Kevin Rickard.
There is a php script in Moodle that will allow you to sync users from AD. You must have LDAP authentication setup.
Before you run the script make sure your LDAP is pointing to the OU with user accounts only. If not, it will sync computer objects and become overwhelming.
I suggest you setup a cron job to have the script run automatically.
The script is located at /var/www/moodle/enrol/ldap/cli/sync.php