The most basic way to set an environment variable in Apache is using the unconditional SetEnv directive. Setting Environment Variables Related Modules If you wish to manipulate the operating system environment under which the server itself runs, you must use the standard environment manipulation mechanisms provided by your operating system shell. They only become actual operating system environment variables when they are provided to CGI scripts and Server Side Include scripts. Instead, these variables are stored and manipulated in an internal Apache structure. This document discusses different ways to manipulate and use these variables.Īlthough these variables are referred to as environment variables, they are not the same as the environment variables controlled by the underlying operating system. The variables are also used as a mechanism to communicate with external programs such as CGI scripts. This information can be used to control various operations such as logging or access control.

Second, the Apache HTTP Server provides a mechanism for storing information in named variables that are also called environment variables. They can be used in expansions in configuration files, and can optionally be passed to CGI scripts and SSI using the PassEnv directive. There are two kinds of environment variables that affect the Apache HTTP Server.įirst, there are the environment variables controlled by the underlying operating system. 1.4.3 Do not log requests for images in the access log.

1.4.2 Changing protocol behavior with misbehaving clients.1.4.1 Passing broken headers to CGI scripts.1.3.12 force-proxy-request-1.0, proxy-nokeepalive, proxy-sendchunked, proxy-sendcl, proxy-chain-auth, proxy-interim-response, proxy-initial-not-pooled.1.3 Special Purpose Environment Variables.

Apache ant access environment variables