e directory against which most relative paths are resolved. If you have
    not configured Tomcat for multiple instances by setting a CATALINA_BASE
    directory, then $CATALINA_BASE will be set to the value of $CATALINA_HOME,
    the directory into which you have installed Tomcat.</em></p>

</div><h3 id="Access_Logging">Access Logging</h3><div class="text">

<p>Access logging is performed by valves that implement
<strong>org.apache.catalina.AccessLog</strong> interface.</p>

<div class="subsection"><h4 id=