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PAM_ENV

Section: Linux-PAM Manual (8)
Updated: 09/19/2013
Index Return to Main Contents
 

NAME

pam_env - PAM module to set/unset environment variables  

SYNOPSIS

pam_env.so [debug] [conffile=conf-file] [envfile=env-file] [readenv=0|1] [user_envfile=env-file] [user_readenv=0|1]
 

DESCRIPTION

The pam_env PAM module allows the (un)setting of environment variables. Supported is the use of previously set environment variables as well as PAM_ITEMs such as PAM_RHOST.

By default rules for (un)setting of variables is taken from the config file /etc/security/pam_env.conf if no other file is specified.

This module can also parse a file with simple KEY=VAL pairs on separate lines (/etc/environment by default). You can change the default file to parse, with the envfile flag and turn it on or off by setting the readenv flag to 1 or 0 respectively.

Since setting of PAM environment variables can have side effects to other modules, this module should be the last one on the stack.  

OPTIONS

conffile=/path/to/pam_env.conf

Indicate an alternative pam_env.conf style configuration file to override the default. This can be useful when different services need different environments.

debug

A lot of debug information is printed with syslog(3).

envfile=/path/to/environment

Indicate an alternative environment file to override the default. This can be useful when different services need different environments.

readenv=0|1

Turns on or off the reading of the file specified by envfile (0 is off, 1 is on). By default this option is on.

user_envfile=filename

Indicate an alternative .pam_environment file to override the default. This can be useful when different services need different environments. The filename is relative to the user home directory.

user_readenv=0|1

Turns on or off the reading of the user specific environment file. 0 is off, 1 is on. By default this option is on.
 

MODULE TYPES PROVIDED

The auth and session module types are provided.  

RETURN VALUES

PAM_ABORT

Not all relevant data or options could be gotten.

PAM_BUF_ERR

Memory buffer error.

PAM_IGNORE

No pam_env.conf and environment file was found.

PAM_SUCCESS

Environment variables were set.
 

FILES

/etc/security/pam_env.conf

Default configuration file

/etc/environment

Default environment file

$HOME/.pam_environment

User specific environment file
 

SEE ALSO

pam_env.conf(5), pam.d(5), pam(8).  

AUTHOR

pam_env was written by Dave Kinchlea <kinch@kinch.ark.com>.


 

Index

NAME
SYNOPSIS
DESCRIPTION
OPTIONS
MODULE TYPES PROVIDED
RETURN VALUES
FILES
SEE ALSO
AUTHOR


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