More MOSXS fun (Mac OS X Server)::

It will keep specific types of data stored in RAM instead of having to read them off disk everytime they are requested. HTTP requests for content which it cannot or should not cache are passed onto Apache running on the same machine.

In order to do it's thing, the Performance Cache must take over listening on the web server port (port 80). It then determines whether to pass on the request to Apache which is now listening on port 16080.

Ignoring the screw up in "it's" for now, this, which appears to be true, is a bizarre default behavior. Faster? Great. But what firewall has port 16080 open? And isn't a URL like http://www.myUrl.com:16080/~userName a little wack?