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Tuesday, 06 January 2009
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In 1991, Linus Torvalds began to work on the Linux kernel while he was attending the University of Helsinki. Torvalds originally created the Linux kernel as a non-commercial replacement for the Minix kernel; he later changed his original non-free license to the GPLv2, which differed primarily in that it also allowed for commercial redistribution. Linux filled the last major gap in running a complete, fully functional free operating system.
 
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How the Linux is licensed?
Courtesy: Navdeep Singh  
Linus has placed the Linux kernel under the GNU General Public License, which basically means that you may freely copy, change, and distribute it, but you may not impose any restrictions on further distribution.

And you must make the source code available.

This is not the same as Public Domain. See the Copyright FAQ, ftp://rtfm.mit.edu/pub/usenet/news.answers/law/copyright, for details.

Full details are in the file COPYING in the Linux kernel sources (probably in /usr/src/linux on your system). There is a FAQ for the GPL at: http://www.gnu.org/copyleft/gpl-faq.html.

The licenses of the utilities and programs which come with the installations vary. Much of the code is from the GNU Project at the Free Software Foundation, and is also under the GPL. Some other major programs often included in Linux distributions are under a BSD license and other similar licenses.

Note that discussion about the merits or otherwise of the GPL should be posted to the news group gnu.misc.discuss, and not to the news:comp.os.linux hierarchy.

For legal questions, refer to the answer: Where Are Linux Legal Issues Discussed?

 
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