To integrate moodle with Fedena, Moodle integration plugin should be installed in your Fedena. Once moodle integration plugin is installed, You have to place the file, fedena.php  to your Moodle home directory. Once you do this, you have to give the Moodle installation path in Fedena under Settings - General Settings link. Please refer below figure 

Once you give Moodle URL and save the settings, you can start entering users in Fedena. Users created in Fedena will be created in Moodle also once Moodle is integrated with Fedena.