The boot.log is configured via the log4j.properties file located within bin.run.jar. Once the app sever has been bootstrapped, that configuration is dropped and the conf/log4j.xml configuration used for logging instead. I pasted your RollingFileAppender configuration into my log4j.xml file and it worked just fine. But I used 4.0.2, not 4.0.1.SP1. The last two lines in my boot.log file are: 12:52:57,788 DEBUG [Log4jService] Creating jboss.system:type=Log4jService,service=Logging 12:52:57,788 INFO [Log4jService$URLWatchTimerTask] Configuring from URL: resource:log4j.xml Do you have anything like this in your boot.log file? Or is there an error? View the original post : http://www.jboss.org/index.html?module=bb&op=viewtopic&p=4212421#... Reply to the post : http://www.jboss.org/index.html?module=bb&op=posting&mode=reply&a...