Open Source/Open Content @ ICTP School on Wireless

Tomas B. Krag

wire.less.dk

Table of Contents

Source: http://www.gnu.org/philosophy/free-sw.html

Free Software

``Free software'' is a matter of liberty, not price. To understand the concept, you should think of ``free'' as in ``free speech,'' not as in ``free beer.''

Further Reading:
  • http://www.gnu.org/philosophy/free-sw.html
  • http://www.iosn.net/foss-primers
  • http://en.wikipedia.org/wiki/Free_software

Licensing: A Jungle

Further Reading: http://en.wikipedia.org/wiki/Free_software#Free_software_licenses
  • Copyleft licenses, the GNU General Public License being the most prominent. The author retains copyright and permits redistribution and modification under terms to ensure that all modified versions remain free.
  • Public domain software - the author has abandoned the copyright. Since public-domain software lacks copyright protection, it may be freely incorporated into any work, whether proprietary or free.
  • BSD-style licenses, so called because they are applied to much of the software distributed with the BSD operating systems. The author retains copyright protection solely to disclaim warranty and require proper attribution of modified works, but permits redistribution and modification in any work, even proprietary ones.

The Four Freedoms of Free Software

Source: http://www.gnu.org/philosophy/free-sw.html

Open Content: Creative Commons

Source: http://creativecommons.org/

Open Content: Creative Commons

Source: http://creativecommons.org/

Open Content: Creative Commons

Source: http://creativecommons.org/

Open Content: Creative Commons

Source: http://creativecommons.org/

Open & Us

Why should we care?

Open Content & Us

Example: Wireless Networking in the Developing World

WNDW
http://www.wndw.net/

Free Software & Us

Ubuntu Linux

Ubuntu logo

Ubuntu

Linux on the Access Point

Repurposing the Linksys WRT54GL

Some Examples of what we can add to this access point

Linux and Networking

Because we have full access to the network stack....

Linux boxes can replace almost any piece of network equipment: