Apache’s Modular Architecture corepreforkhttp_coremod_soLoadModuledirectives mod_aliasmod_mimemod_proxymod_rewritemod_status The core executable others … The directory Apache The httpd package we installed includes the config file: Listening on a Port You can restrict apache to listen on a specific network interface Listen 22.33.44.55:80 Setting the Document Root The DocumentRoot defines the top-level directory of the web site Setting an Identity Apache needs a user identity to run as Used to perform access control checks to the file system Defining Multi-Process Settings To improve response