CGG
CGGs use customized version of CAS 2.0.12 Server working with Active Directory and use CAS with tomcat web applications, php applications, apache CGI application with mod_cas.
More than 30 applications are protected by cas including Oracle EBusiness Suite 11I and in Version 12, Oracle BI Suite, Webpshere Portal, Domino web applications .....
A failover layer has been added to the CAS client librairies to create a Fault-tolerance system