Hi, We have a requirement to develop a Portal application, where authentication mechanism should be windows based. If a user has logged in to his windows machine, as soon as he loads the link to Portal, he should be automatically authenticated and taken to the Portal home page without asking further login credentials. His username needs to be displayed on the home page. How can this be achieved with the JBoss Portal security mechanism? I believe this could be possible in a normal web application and can the same mechanism can be probably used here? Any pointers, help on the same is appreciated. View the original post : http://www.jboss.com/index.html?module=bb&op=viewtopic&p=4125603#... Reply to the post : http://www.jboss.com/index.html?module=bb&op=posting&mode=reply&a...