In JBoss AS it's in .\server\default\conf\jboss-log4j.xml View the original post : http://www.jboss.com/index.html?module=bb&op=viewtopic&p=4126894#4126894 Reply to the post : http://www.jboss.com/index.html?module=bb&op=posting&mode=reply&p=4126894