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Apache HTTP Server Version 2.4

Apache > HTTP Server > Documentation > Version 2.4 > Modules

Apache Module mod_env

Description:	Modifies the environment which is passed to CGI scripts and SSI pages
Status:	Base
Module Identifier:	env_module
Source File:	mod_env.c

Summary

This module allows for control of internal environment variables that are used by various Apache HTTP Server modules. These variables are also provided to CGI scripts as native system environment variables, and available for use in SSI pages. Environment variables may be passed from the shell which invoked the httpd process. Alternatively, environment variables may be set or unset within the configuration process.

Directives

• PassEnv
• SetEnv
• UnsetEnv

Bugfix checklist

• httpd changelog
• Known issues
• Report a bug

See also

• Environment Variables
• SetEnvIf

  
  

  
  

  SetEnv Directive

  Description:	Sets environment variables
  Syntax:	SetEnv env-variable [value]
  Context:	server config, virtual host, directory, .htaccess
  Override:	FileInfo
  Status:	Base
  Module:	mod_env

  Sets an internal environment variable, which is then available to Apache HTTP Server modules, and passed on to CGI scripts and SSI pages.

  
  

  Example

  SetEnv SPECIAL_PATH /foo/bin

  If you omit the value argument, the variable is set to an empty string.

  The internal environment variables set by this directive are set after most early request processing directives are run, such as access control and URI-to-filename mapping. If the environment variable you're setting is meant as input into this early phase of processing such as the RewriteRule directive, we should instead set the environment variable with SetEnvIf.

  
  

  See also

  • Environment Variables

  
  

  
  

  UnsetEnv Directive

  Description:	Removes variables from the environment
  Syntax:	UnsetEnv env-variable [env-variable] ...
  Context:	server config, virtual host, directory, .htaccess
  Override:	FileInfo
  Status:	Base
  Module:	mod_env

  Removes one or more internal environment variables from those passed on to CGI scripts and SSI pages.

  
  

  Example

  UnsetEnv LD_LIBRARY_PATH