Hi for all Geat,Great,Great yesssssssssssss The problem is solved Many Thank for erasmomarciano, PeterJ and jaikiran the solution is: open hosts File in etc and replace all the words "Localhost or Localhost6 " to the machine name show in JBoss log in | Caused by: java.lang.RuntimeException: Exception creating identity: your machine name: your machine name | explain by another method in http://chiralsoftware.com/blog/JBoss-Application-Server-with-Java-6-ab298... View the original post : http://www.jboss.com/index.html?module=bb&op=viewtopic&p=4183161#... Reply to the post : http://www.jboss.com/index.html?module=bb&op=posting&mode=reply&a...