pam_env 8 Linux-PAM Manual pam_env PAM module to set/unset environment variables pam_env.so debug conffile=conf-file envfile=env-file readenv=0|1 user_envfile=env-file user_readenv=0|1 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. 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 syslog3. 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. The auth and session module types are provided. 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. /etc/security/pam_env.conf Default configuration file /etc/environment Default environment file $HOME/.pam_environment User specific environment file pam_env.conf5 , pam.d5 , pam8 . pam_env was written by Dave Kinchlea <kinch@kinch.ark.com>.