CITA 310 Section 4 Apache Configuration (Selected Topics from Textbook Chapter 6)

Directives and Containers Statements in the Apache configuration file are called directives. A directive normally consists of a name followed by one or more parameters. A directive can also be a container that consists of HTML-like starting and ending tags to group a set of directives.

Basic Directives ServerRoot Directory location of server files DocumentRoot Directory where the Web pages are stored ServerName DNS host name or IP address of server

Basic Directives DirectoryIndex Tells Apache to use the specified file(s) when a directory is queried User Shows the user name that Apache employs when someone requests a Web page

Other Directives Listen (80 by default) Determines the port number for the server KeepAlive (On by default) Indicates whether Apache should maintain a persistent connection ServerSignature (Off by default) Controls whether the server information is displayed as a result of Web page error

Directory Containers and are used to enclose a group of directives that will apply only to the named directory and sub-directories of that directory. Directory path is either the full path to a directory, or a wild-card string using Unix shell-style matching.

Wild-Card String ? matches any single character. * matches any sequences of characters. You may also use [] character ranges. None of the wildcards match a slash (/) character.

DirectoryMatch Containers and are used to enclose a group of directives which will apply only to the named directory and sub- directories of that directory, the same as. However, it takes as an argument a regular expression.

Files Containers and limit the scope of the enclosed directives by filename. The directives given within this section will be applied to any object with a basename (last component of filename) matching the specified filename.

Location Containers and limit the scope of the enclosed directives by URL. It is recommended to use Location container to apply directives to content that lives outside the file system.

Modules An Apache administrator can choose the functionality to include in the server by selecting a set of modules. The LoadModule directive links in the object file and adds the module structure to the list of active modules.