Hi
The correct way is to edit the file (as already answered).
Here is a quick solution (if you haven't had the time to read the documentation on JBoss AS and/or log4j)
Add the following row to the FILE appender in "jboss-log4j.xml" file:
<param name="Threshold" value="INFO"/>
(Compare with the CONSOLE appender that already has this setup)
PS. You probably also want to set "Append" to true! DS.