IcyCAS - CAS Authentication

Details:
This plugin enhances your MyBB installation with Single Sign On (SSO) technology. You can easily and quickly integrate your MyBB forum with your organizations CAS server. Existing users can continue to log in using their MyBB credentials, or the administrator can add their external identifier to their profile, allowing them to log in via CAS. New members can create their account by simply entering a username and email address. For more information about CAS, please visit their website.

Instructions:
1) Activate Plugin
2) Edit the "header_welcomeblock_guest" template and add a link to http://yourdomain.com/casauth.php for the CAS login page.