Assuming your question is about the portal since you posted in the Portal forum...the portal looks for a JNDI name of PortalDS. Take a look in your jboss portal zip for a setup directory. Looks like you are using mysql so look for file portal-mysql5-ds.xml. Make adjustments to that file and drop it in the jboss server deploy directory. View the original post : http://www.jboss.com/index.html?module=bb&op=viewtopic&p=4150902#... Reply to the post : http://www.jboss.com/index.html?module=bb&op=posting&mode=reply&a...