slive 01/05/05 12:19:30 Modified: htdocs/manual env.html Log: Explain the difference between the Apache environment and the OS environment. Revision Changes Path 1.17 +17 -5 httpd-docs-1.3/htdocs/manual/env.html Index: env.html =================================================================== RCS file: /home/cvs/httpd-docs-1.3/htdocs/manual/env.html,v retrieving revision 1.16 retrieving revision 1.17 diff -u -d -b -u -r1.16 -r1.17 --- env.html 2001/01/09 03:21:42 1.16 +++ env.html 2001/05/05 19:19:30 1.17 @@ -15,11 +15,23 @@ <!--#include virtual="header.html" --> <h1 align="center">Environment Variables in Apache</h1> -<p>Many operating systems provide a facility for storage and -transmission of information called environment variables. Apache uses -environment variables in many ways to control operations and to -communicate with other programs like CGI scripts. This document -explains some of the ways to use environment variables in Apache.</p> +<p>The Apache HTTP Server provides a mechanism for storing information +in named variables that are called <em>environment variables</em>. +This information can be used to control various operations such as +logging or access control. The variables are also used as a mechanism +to communicate with external programs such as CGI scripts. This +document discusses different ways to manipulate and use these +variables.</p> + +<p>Although these variables are referred to as <em>environment +variables</em>, they are not the same as the environment variables +controlled by the underlying operating system. Instead, these +variables are stored and manipulated in an internal Apache structure. +They only become actual operating system environment variables when +they are provided to CGI scripts and Server Side Include scripts. 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.</p> <ul> <li><a href="#setting">Setting Environment Variables</a></li>
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