Hi, I need to know how to develop a function to do user Authentication between a portlet and Portal frame. I am developing a portlet by JSR 168 under Portal frame for a University. We need just a single sign-on to the portal. The university has a so-called blue-stem sign on for every student and staff. Now I am developing a portlet plugged into the Portal. I use JSP/Java to develop portlet. When an user signs onto the blue-stem system, it can automatically get him/her into the portlet. For example, user id = abcd, password = xxxx. the Portal can catch this login from blue-stem system and pass back into User Authentication between portlet and Portal I want to know how to develop this function. If I need to insert a code, where should I input? Any simple code will be very help me start. Thanks a lot. View the original post : http://www.jboss.com/index.html?module=bb&op=viewtopic&p=4020314#... Reply to the post : http://www.jboss.com/index.html?module=bb&op=posting&mode=reply&a...