Prohibit Direct Access to Moodle

Can anyone lead me to information where I can setup Moodle to deny direct access, so that only Joomla acts as a front end to Moodle?

Hello,

See the Joomdle installation instructions "Installing Joomdle in Moodle 2". Scroll down to the very last section entitled "Advanced Moodle Configuration (Optional)". See the first sub-section: "Removing the default Moodle login page (redirect the Moodle login page to Joomla!"

Hopefully this is what you were looking for.