Note: You are currently viewing documentation for Moodle 3.2. Up-to-date documentation for the latest stable version of Moodle is probably available here: FirstClass authentication.
Location: Settings link in Site administration > Plugins > Authentication > Manage authentication
FirstClass is a client/server groupware, email, online conferencing, voice/fax services, and bulletin-board system for Windows, Macintosh, and Linux. FirstClass authentication uses the FirstClass Server for the authentication process i.e. to check for user accounts.