There is a lot to know and remember about configuring Apache as you may or may not have seen from the numerous posts I have written on the subject, and the reality is that no one is going to be able to memorize each and every settings, configuration, and directive. Sure you can bing it or google it , you can even alta-vista it, but only if you have internet access at the time, however there is always a chance that you might get some bad information. So why not refer to the official httpd documentation. You know RTFM and what not.