To log into Moodle for University Courses, you need to use credentials, username and password from the Central Authentication Service (CAS) of Charles University (to authenticate if the user belongs to the Charles University community).
CAS login also allows users to use the same login information to access Moodle as for other Information System applications. To sign in to Moodle, you must have a valid email address in your CAS that can be edited in your user profile after logging into CAS.