Free Knowledge Resources


Linux Manual Pages


Free Software * Books

Source Code

Free Media

Linux

vlock-plugins(5)


NAME

   vlock-plugins - plugin support for vlock

DESCRIPTION

   If  vlock-main(8)  is compiled with plugin support its default features
   are very limited: it can only lock the  current  session  and  ask  for
   authenticiaton.   However  it  is  possible  to  extend  this functions
   through plugins.  These plugins are loaded when vlock-main  starts  and
   can provide hooks that are called at certain points during the lifetime
   of the vlock-main process.

DEFAULT PLUGINS

   The following plugins are provided when installing vlock  with  default
   options:

   all

          This  plugin  locks all sessions by disabling console switching.
          It is also loaded when giving the -a,--all option to vlock(1).

   new

          This plugin switches to a new virtual console  before  disabling
          console  switching  through the "all" plugin.  It is also loaded
          when giving the -n,--new option to vlock(1).

   nosysrq

          Linux only.  This plugin  disables  the  Linux  SysRQ  mechanism
          before  the console switching is locked by the "all" plugin.  It
          is also loaded when  giving  the  -s,--disable-sysrq  option  to
          vlock(1).

ADDITIONAL PLUGINS

   The  following  plugins  are  only  available if explicitly selected at
   build time:

   caca

          This plugin runs a random libcaca screensaver when the screen is
          locked.

WRITING PLUGINS

   For information about writing plugins see the PLUGINS file in the vlock
   source distribution.

SEE ALSO

   vlock(1), vlock-main(8)

AUTHORS

   Frank Benkstein <frank-vlock@benkstein.net>



Opportunity


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


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.



Free Books


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.



Education


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.


birds banner