Free Knowledge Resources


Linux Manual Pages


Free Software * Books

Source Code

Free Media

Linux

booleans(8)


NAME

   booleans  -  Policy  booleans  enable  runtime customization of SELinux
   policy

DESCRIPTION

   This manual page describes  SELinux  policy  booleans.     The  SELinux
   policy can include conditional rules that are enabled or disabled based
   on the current values of  a  set  of  policy  booleans.   These  policy
   booleans  allow  runtime  modification  of  the security policy without
   having to load a new policy.

   For example, the boolean httpd_enable_cgi allows the  httpd  daemon  to
   run  cgi  scripts if it is enabled.  If the administrator does not want
   to allow execution of cgi scripts, he can simply disable  this  boolean
   value.

   The  policy  defines a default value for each boolean, typically false.
   These default values can be overridden via local settings  created  via
   the  setsebool(8)  utility,  using  -P  to  make the setting persistent
   across  reboots.   The  system-config-securitylevel  tool  provides   a
   graphical  interface  for  altering  the  settings.  The load_policy(8)
   program will preserve current boolean settings upon a policy reload  by
   default, or can optionally reset booleans to the boot-time defaults via
   the -b option.

   Boolean values can be listed by  using  the  getsebool(8)  utility  and
   passing it the -a option.

   Boolean  values  can  also  be  changed at runtime via the setsebool(8)
   utility or the togglesebool(8) utility.  By  default,  these  utilities
   only  change the current boolean value and do not affect the persistent
   settings, unless the -P option is used to setsebool.

AUTHOR

   This manual page was written by  Dan  Walsh  <dwalsh@redhat.com>.   The
   SELinux conditional policy support was developed by Tresys Technology.

SEE ALSO

   getsebool(8), setsebool(8), selinux(8), togglesebool(8)



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