similarly, the user should not be able to execute code which is not
meant for httpd requests. It is recommended that you set up a new user and
group specifically for running the server. Some admins use user
-<CODE>nobody</CODE>, but this is not always possible or desirable.<P>
+<CODE>nobody</CODE>, but this is not always possible or desirable.
+For example mod_proxy's cache, when enabled, must be accessible to this user
+(see the <A href="mod_proxy.html#cacheroot"><CODE>CacheRoot</CODE></a>
+directive</a>).<P>
Notes: If you start the server as a non-root user, it will fail to change
to the lesser privileged user, and will instead continue to run as
Apache 1.1 and later.<P>
Sets the name of the directory to contain cache files; this must be
-writable by the httpd server.<BR>
+writable by the httpd server.
+(see the <A href="core.html#user"><CODE>User</CODE></a> directive</a>).<BR>
Setting <CODE>CacheRoot</CODE> enables proxy cacheing; without defining
a <CODE>CacheRoot</CODE>, proxy functionality will be available
if <CODE>ProxyRequests</CODE> are set to <CODE>On</CODE>, but no