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.
Indicate an alternative pam_env.conf style configuration file to override the default. This can be useful when different services need different environments.
A lot of debug information is printed with syslog(3).
Indicate an alternative environment file to override the default. This can be useful when different services need different environments.
Turns on or off the reading of the file specified by envfile (0 is off, 1 is on). By default this option is on.
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.
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.
Not all relevant data or options could be gotten.
Memory buffer error.
No pam_env.conf and environment file was found.
Environment variables were set.
Default configuration file
Default environment file
User specific environment file
pam_env was written by Dave Kinchlea <firstname.lastname@example.org>.
Personal Opportunity - Free software gives you access to billions of dollars of software at no cost. Use this software for your business, personal use or to develop a profitable skill. Access to source code provides access to a level of capabilities/information that companies protect though copyrights. Open source is a core component of the Internet and it is available to you. Leverage the billions of dollars in resources and capabilities to build a career, establish a business or change the world. The potential is endless for those who understand the opportunity.
Business Opportunity - Goldman Sachs, IBM and countless large corporations are leveraging open source to reduce costs, develop products and increase their bottom lines. Learn what these companies know about open source and how open source can give you the advantage.
Free Software provides computer programs and capabilities at no cost but more importantly, it provides the freedom to run, edit, contribute to, and share the software. The importance of free software is a matter of access, not price. Software at no cost is a benefit but ownership rights to the software and source code is far more significant.
Free Office Software - The Libre Office suite provides top desktop productivity tools for free. This includes, a word processor, spreadsheet, presentation engine, drawing and flowcharting, database and math applications. Libre Office is available for Linux or Windows.
The Free Books Library is a collection of thousands of the most popular public domain books in an online readable format. The collection includes great classical literature and more recent works where the U.S. copyright has expired. These books are yours to read and use without restrictions.
Source Code - Want to change a program or know how it works? Open Source provides the source code for its programs so that anyone can use, modify or learn how to write those programs themselves. Visit the GNU source code repositories to download the source.
Study at Harvard, Stanford or MIT - Open edX provides free online courses from Harvard, MIT, Columbia, UC Berkeley and other top Universities. Hundreds of courses for almost all major subjects and course levels. Open edx also offers some paid courses and selected certifications.
Linux Manual Pages - A man or manual page is a form of software documentation found on Linux/Unix operating systems. Topics covered include computer programs (including library and system calls), formal standards and conventions, and even abstract concepts.