Test the General config settings We consider here that the Bigbluebutton plugin is enabled. As an admin, go to Site Administration / Bigbluebutton / General settings Check that you can see bigbluebuttonbn_server_url, bigbluebuttonbn_shared_secret and bigbluebuttonbn_checksum_algorithm settings Add the following to your config.php: $CFG->bigbluebuttonbn['server_url'] = 'https://test-moodle.blindsidenetworks.com/bigbluebutton/'; $CFG->bigbluebuttonbn['shared_secret'] = '0b21fcaf34673a8c3ec8ed877d76ae34'; Ensure you can still see the BigBlueButton Checksum Algorithm setting Add $CFG->bigbluebuttonbn['checksum_algorithm'] = 'SHA1'; to the config.php Ensure you can NOT see the BigBlueButton Checksum Algorithm setting Sanity check As an admin, go to Site Administration / Bigbluebutton / General settings Ensure that the SHA1 algorithm has been selected Go to an existing (or a new) BigblueButton activity and join the meeting Ensure the meeting can be joined as usual