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April, 26th. 2006:
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PAM_ENV
Section: Linux-PAM Manual (8) Updated: 04/01/2016 Index
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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 are taken from the config file
/etc/security/pam_env.conf. An alternate file can be specified with the
conffile
option.
Second a file (/etc/environment
by default) with simple
KEY=VAL
pairs on separate lines will be read. With the
envfile
option an alternate file can be specified. And with the
readenv
option this can be completly disabled.
Third it will read a user configuration file ($HOME/.pam_environment
by default). The default file file can be changed with the
user_envfile
option and it can be turned on and off with the
user_readenv
option.
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. The syntax are simple
KEY=VAL
pairs on separate lines. The
export
instruction can be specified for bash compatibility, but will be ignored. 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.The syntax is the same as for
/etc/environment. The filename is relative to the user home directory. This can be useful when different services need different environments.
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),
environ(7).
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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