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<article class="post-202 html5presentation type-html5presentation status-publish hentry"><h3>What is a software license?</h3><p>A software license is a legal instrument governing the use or redistribution of software. </p>
<ul>
<li>Under <em>copyright law</em> all software is copyright protected, in source code as also object code form.</li>
<li>Two common categories for software under copyright law, and therefore with licenses which grant the licensee specific rights, are proprietary software and free and open source software (FOSS).</li>
</ul>
</article><article class="post-204 html5presentation type-html5presentation status-publish hentry"><h3>Proprietary Software and Free and Open Source Software</h3><p>The distinct conceptual difference between the two is the granting of rights to modify and re-use a software product obtained by a customer:</p>
<ul>
<li><strong>FOSS</strong> software licenses both rights to the customer and therefore bundles the modifiable source code with the software. </li>
<li><strong>Proprietary</strong> software typically does not license these rights and therefore keeps the source code <em>hidden</em>.</li>
</ul>
</article><article class="post-207 html5presentation type-html5presentation status-publish hentry"><h3>Proprietary software licenses</h3><p>The hallmark of proprietary software licenses is that the software publisher grants the use of one or more copies of software under the <em>end-user license agreement</em> (EULA), but ownership of those copies <em>remains</em> with the software publisher.</p>
<p>EULAs <em>include</em> terms which define the uses of the software, such as the number of installations allowed or the terms of distribution.</p>
</article><article class="post-208 html5presentation type-html5presentation status-publish hentry"><h3>Free and open-source software licenses</h3><p>A free software license is a notice that grants the recipient of a piece of software extensive rights to modify and redistribute that software. </p>
<p><em>These actions are usually prohibited by copyright law</em>, but the rights-holder (usually the author) of a piece of software can remove these restrictions by accompanying the software with a software license which grants the recipient these rights.</p>
</article><article class="post-211 html5presentation type-html5presentation status-publish hentry nobackground"><p><center> <a href="https://web.archive.org/web/20180331065808/http://blog.isamert.net/wp-content/uploads/2016/11/Software-license-classification-mark-webbink.svg_.png"><img src="https://web.archive.org/web/20180331065808im_/http://blog.isamert.net/wp-content/uploads/2016/11/Software-license-classification-mark-webbink.svg_.png" alt="Software-license-classification-mark-webbink.svg" width="1450" height="345" class="alignnone size-full wp-image-205" srcset="https://web.archive.org/web/20180331065808im_/http://blog.isamert.net/wp-content/uploads/2016/11/Software-license-classification-mark-webbink.svg_.png 1450w, https://web.archive.org/web/20180331065808im_/http://blog.isamert.net/wp-content/uploads/2016/11/Software-license-classification-mark-webbink.svg_-300x71.png 300w, https://web.archive.org/web/20180331065808im_/http://blog.isamert.net/wp-content/uploads/2016/11/Software-license-classification-mark-webbink.svg_-768x183.png 768w, https://web.archive.org/web/20180331065808im_/http://blog.isamert.net/wp-content/uploads/2016/11/Software-license-classification-mark-webbink.svg_-1024x244.png 1024w" sizes="(max-width: 1450px) 100vw, 1450px"/></a> </center></p>
</article><article class="post-209 html5presentation type-html5presentation status-publish has-post-thumbnail hentry fill"><p><center> <a href="https://web.archive.org/web/20180331065808/http://blog.isamert.net/wp-content/uploads/2016/11/Software_Categories_expanded.svg_.png"><img src="https://web.archive.org/web/20180331065808im_/http://blog.isamert.net/wp-content/uploads/2016/11/Software_Categories_expanded.svg_.png" alt="Software_Categories_expanded.svg" width="546" height="446" class="alignnone size-full wp-image-210" srcset="https://web.archive.org/web/20180331065808im_/http://blog.isamert.net/wp-content/uploads/2016/11/Software_Categories_expanded.svg_.png 546w, https://web.archive.org/web/20180331065808im_/http://blog.isamert.net/wp-content/uploads/2016/11/Software_Categories_expanded.svg_-300x245.png 300w" sizes="(max-width: 546px) 100vw, 546px"/></a> </center></p>
</article><article class="post-212 html5presentation type-html5presentation status-publish hentry"><h3>Free software in general</h3><p>“Free software” means software that respects users’ freedom and community. Roughly, it means that the users have the freedom to run, copy, distribute, study, change and improve the software. Thus, “free software” is a matter of liberty, not price. </p>
</article><article class="post-213 html5presentation type-html5presentation status-publish hentry"><h2>Freedoms</h2></article><article class="post-214 html5presentation type-html5presentation status-publish hentry build"><h3>Free as in freedom</h3><ul class="build">
<li class="build">The freedom to run the program as you wish, for any purpose (freedom 0).</li>
<li class="build">The freedom to study how the program works, and change it so it does your computing as you wish (freedom 1). Access to the source code is a precondition for this.</li>
<li class="build">The freedom to redistribute copies so you can help your neighbor (freedom 2).</li>
<li class="build">The freedom to distribute copies of your modified versions to others (freedom 3). By doing this you can give the whole community a chance to benefit from your changes. Access to the source code is a precondition for this.</li>
</ul>
</article><article class="post-218 html5presentation type-html5presentation status-publish hentry"><h2>Copyleft vs Permissive</h2></article><article class="post-219 html5presentation type-html5presentation status-publish hentry"><h3>What is a permissive license?</h3><p>A Permissive software license is a FOSS software license with minimal requirements about how the software can be redistributed. Examples include the MIT License, BSD licenses and the Apache license. </p>
<p><center> <a href="https://web.archive.org/web/20180331065808/http://blog.isamert.net/wp-content/uploads/2016/11/196px-Copyfree.svg_.png"><img src="https://web.archive.org/web/20180331065808im_/http://blog.isamert.net/wp-content/uploads/2016/11/196px-Copyfree.svg_.png" alt="196px-Copyfree.svg" width="100" height="100" class="size-full wp-image-220" srcset="https://web.archive.org/web/20180331065808im_/http://blog.isamert.net/wp-content/uploads/2016/11/196px-Copyfree.svg_.png 196w, https://web.archive.org/web/20180331065808im_/http://blog.isamert.net/wp-content/uploads/2016/11/196px-Copyfree.svg_-150x150.png 150w" sizes="(max-width: 100px) 100vw, 100px"/></a></center></p>
</article><article class="post-222 html5presentation type-html5presentation status-publish hentry"><h3>What is copyleft?</h3><p>Copyleft is a general method for making a program or other work free, and requiring all modified and extended versions of the program to be free as well.</p>
<p><center> <a href="https://web.archive.org/web/20180331065808/http://blog.isamert.net/wp-content/uploads/2016/11/Copyleft.svg_.png"><img src="https://web.archive.org/web/20180331065808im_/http://blog.isamert.net/wp-content/uploads/2016/11/Copyleft.svg_.png" alt="Copyleft.svg" width="350" height="350" class="alignnone size-full wp-image-223" srcset="https://web.archive.org/web/20180331065808im_/http://blog.isamert.net/wp-content/uploads/2016/11/Copyleft.svg_.png 1024w, https://web.archive.org/web/20180331065808im_/http://blog.isamert.net/wp-content/uploads/2016/11/Copyleft.svg_-150x150.png 150w, https://web.archive.org/web/20180331065808im_/http://blog.isamert.net/wp-content/uploads/2016/11/Copyleft.svg_-300x300.png 300w, https://web.archive.org/web/20180331065808im_/http://blog.isamert.net/wp-content/uploads/2016/11/Copyleft.svg_-768x768.png 768w" sizes="(max-width: 350px) 100vw, 350px"/></a></center></p>
</article><article class="post-224 html5presentation type-html5presentation status-publish hentry"><h3>Why prefer copyleft?</h3><p>The simplest way to make a program free software is to put it in the public domain, uncopyrighted. This allows people to share the program and their improvements, <em>if they are so minded</em>. But it also allows <em>uncooperative</em> people to convert the program into proprietary software. They can make changes, many or few, and distribute the result as a proprietary product. People who receive the program in that modified form do not have the freedom that the original author gave them; the <em>middleman</em> has stripped it away.</p>
<p>To maintain the freedom of your program, consider using a copyleft license.</p>
</article><article class="post-225 html5presentation type-html5presentation status-publish hentry fill"><p><a href="https://web.archive.org/web/20180331065808/http://blog.isamert.net/wp-content/uploads/2016/11/hcKzf.png"><img src="https://web.archive.org/web/20180331065808im_/http://blog.isamert.net/wp-content/uploads/2016/11/hcKzf.png" alt="hcKzf" width="594" height="498" class="alignnone size-full wp-image-226" srcset="https://web.archive.org/web/20180331065808im_/http://blog.isamert.net/wp-content/uploads/2016/11/hcKzf.png 594w, https://web.archive.org/web/20180331065808im_/http://blog.isamert.net/wp-content/uploads/2016/11/hcKzf-300x252.png 300w" sizes="(max-width: 594px) 100vw, 594px"/></a></p>
</article><article class="post-227 html5presentation type-html5presentation status-publish hentry"><h2>Some popular licenses</h2></article><article class="post-228 html5presentation type-html5presentation status-publish hentry"><h3>GNU General Public License</h3><p><a href="https://web.archive.org/web/20180331065808/http://blog.isamert.net/wp-content/uploads/2016/11/GPLv3_Logo.svg_.png"><img src="https://web.archive.org/web/20180331065808im_/http://blog.isamert.net/wp-content/uploads/2016/11/GPLv3_Logo.svg_-300x149.png" alt="GPLv3_Logo.svg" width="300" height="149" class="alignnone size-medium wp-image-229" srcset="https://web.archive.org/web/20180331065808im_/http://blog.isamert.net/wp-content/uploads/2016/11/GPLv3_Logo.svg_-300x149.png 300w, https://web.archive.org/web/20180331065808im_/http://blog.isamert.net/wp-content/uploads/2016/11/GPLv3_Logo.svg_.png 720w" sizes="(max-width: 300px) 100vw, 300px"/></a></p>
<p>The GNU GPLv3 is a copyleft license that requires anyone who distributes your code or a derivative work to make the source available under the same terms, and also provides an express grant of patent rights from contributors to users.</p>
</article><article class="post-230 html5presentation type-html5presentation status-publish hentry"><h3>Apache License</h3><p><a href="https://web.archive.org/web/20180331065808/http://blog.isamert.net/wp-content/uploads/2016/11/asf_logo.png"><img src="https://web.archive.org/web/20180331065808im_/http://blog.isamert.net/wp-content/uploads/2016/11/asf_logo-300x122.png" alt="asf_logo" width="300" height="122" class="alignnone size-medium wp-image-231" srcset="https://web.archive.org/web/20180331065808im_/http://blog.isamert.net/wp-content/uploads/2016/11/asf_logo-300x122.png 300w, https://web.archive.org/web/20180331065808im_/http://blog.isamert.net/wp-content/uploads/2016/11/asf_logo.png 429w" sizes="(max-width: 300px) 100vw, 300px"/></a></p>
<p>A permissive license whose main conditions require preservation of copyright and license notices. Contributors provide an express grant of patent rights. Licensed works, modifications, and larger works may be distributed under different terms and without source code.</p>
</article><article class="post-232 html5presentation type-html5presentation status-publish hentry"><h3>MIT License</h3><p>The MIT License is a permissive license that is short and to the point. It lets people do anything they want with your code as long as they provide attribution back to you and don’t hold you liable.</p>
</article><article class="post-233 html5presentation type-html5presentation status-publish hentry"><h3>A guide for selecting a license</h3><p><iframe src="https://web.archive.org/web/20180331065808if_/https://www.gnu.org/licenses/license-recommendations.html" name="test"> </iframe></p>
</article><article class="post-234 html5presentation type-html5presentation status-publish hentry"><h3>Motives For Writing Free Software</h3><p><iframe src="https://web.archive.org/web/20180331065808if_/https://www.gnu.org/philosophy/fs-motives.html" name="motives"></iframe></p>
</article><article class="post-235 html5presentation type-html5presentation status-publish hentry"><h3>Proprietary Software Is Often Malware</h3><p><iframe src="https://web.archive.org/web/20180331065808if_/https://www.gnu.org/philosophy/proprietary.html" name="malware"></iframe></p>
</article><article class="post-237 html5presentation type-html5presentation status-publish hentry fill"><h3>Richard Stallman</h3><p><a href="https://web.archive.org/web/20180331065808/http://blog.isamert.net/wp-content/uploads/2016/11/2d6c45f5b7c67ebafdef2bc85499743c.jpg"><img src="https://web.archive.org/web/20180331065808im_/http://blog.isamert.net/wp-content/uploads/2016/11/2d6c45f5b7c67ebafdef2bc85499743c-300x225.jpg" alt="Richard Stallman" width="300" height="225" class="size-medium wp-image-238" srcset="https://web.archive.org/web/20180331065808im_/http://blog.isamert.net/wp-content/uploads/2016/11/2d6c45f5b7c67ebafdef2bc85499743c-300x225.jpg 300w, https://web.archive.org/web/20180331065808im_/http://blog.isamert.net/wp-content/uploads/2016/11/2d6c45f5b7c67ebafdef2bc85499743c.jpg 600w" sizes="(max-width: 300px) 100vw, 300px"/></a></p>
</article><article class="post-236 html5presentation type-html5presentation status-publish hentry"><h3>Further reading</h3><p>https://www.gnu.org/philosophy/free-software-even-more-important.html<br/>
https://www.gnu.org/philosophy/pragmatic.html<br/>
https://www.gnu.org/philosophy/selling.html<br/>
https://www.gnu.org/philosophy/open-source-misses-the-point.html<br/>
https://www.gnu.org/gnu/gnu.html</p>
</article><article class="post-239 html5presentation type-html5presentation status-publish hentry fill"><p><a href="https://web.archive.org/web/20180331065808/http://blog.isamert.net/wp-content/uploads/2016/11/157-5742_IMG.jpg"><img src="https://web.archive.org/web/20180331065808im_/http://blog.isamert.net/wp-content/uploads/2016/11/157-5742_IMG.jpg" alt="157-5742_IMG" width="640" height="480" class="alignnone size-full wp-image-240" srcset="https://web.archive.org/web/20180331065808im_/http://blog.isamert.net/wp-content/uploads/2016/11/157-5742_IMG.jpg 640w, https://web.archive.org/web/20180331065808im_/http://blog.isamert.net/wp-content/uploads/2016/11/157-5742_IMG-300x225.jpg 300w" sizes="(max-width: 640px) 100vw, 640px"/></a></p>
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