thanks friends i will read it after my thanks:) however, in ths referenceGuide it mentioned: anonymous wrote : The steps below assume that CAS server and JBoss Portal will be deployed on the same JBoss Application | Server instance. CAS will be configured to leverage identity services exposed by JBoss Portal to perform | authentication. Procedure may be sligtly different for other deployment scenarios. Both JBoss Portal and | CAS will need to be configured to authenticate against same database or LDAP server. what i concentrate is how CAS configured in jboss portal, for the users who are new in this field will want to know it very much:) And what's more, in this wiki http://wiki.jboss.org/wiki/Wiki.jsp?page=CASSSOFrameworkIntegration there was a error when i follow it at the step 4, when i type ant deploy-cas, a message will show that libraries in thirdpart folder not found, when a commentted them out, error \core\biuld.xml:91: refrence apache.ant.classpath not found should i add ant into CLASSPATH?i have added it to ANT_HOME thanks for help, i want to realise SSO with CAS on jboss portal, is it ok for 2.6.1? or i must download the 2.6.2? the version i have is bundled with jboss AS View the original post : http://www.jboss.com/index.html?module=bb&op=viewtopic&p=4099061#... Reply to the post : http://www.jboss.com/index.html?module=bb&op=posting&mode=reply&a...