This is an excellent book that covers just about everything you'll need to know to get the most out of Apache. It's much more accomplished and up to date than the O'Reilly book.
Everything from advanced Apache build options to implementing virtual hosts, cgi and dynamic content (including php3) to performance and monitoring are covered in a detailed yet easy to digest way. There's a good chapter on security which covers authentication as well as server security in good depth.
The author makes little attempt to cover Apache running under Windows, though this is explained in the first chapter. However, if you can get Apache up and running on a Windows machine without help,… Mehr dazu