The Apache HTTP Server, colloquially called Apache is the world's most used web server software. This comprehensive Reference Manual covers everything you need to know, incl.: Using the Apache HTTP Server Apache Virtual Host documentation URL Rewriting Guide Apache SSL/TLS Encryption Guides, Tutorials, and HowTos Platform-specific Notes Apache HTTP Server and Supporting Programs Apache Miscellaneous Documentation Apache modules Developer Documentation As Apache HTTP Server became such a big project over the years, we had to split this reference manual in three parts that are three separate physical books. To keep it consistent with the digital manual, the references and page numbers cover all physical books as it were one. Therefore please note that you probably want to have all parts.