Troubleshooting Single Sign-On (SSO) Between IBM WebSphere Portal and IBM Lotus Domino

This paper is designed to help administrators who have configured SSO in their environment but find it is not working correctly. This paper explains exactly how to test, configure, and read debug so one can determine and resolve the root cause of whatever SSO blocker one is encountering in the environment. If SSO is currently failing, debug must be collected to understand the issue. One can enable SSO on either the IBM WebSphere Portal server or the IBM LotusDomino server; it's only necessary to enable the debug on one of the servers, and this should be the server one access after signing in.