Ellogon is released under the GNU Lesser General Public License (GNU LGPL).The GNU LGPL provides for a person or persons to distribute Ellogon for a fee, but not actually charging for the software itself, because Ellogon is free. Ellogon is free to share and change, but if you do change it in anyway, can you also change the license? No! The whole LGPL is devoted to ensuring this does not happen. Copyright, a much more refined and stringent law will prevent this as well.
So with regard to Ellogon, the LGPL and copyright:
You MAY distribute it and charge for that service. You MAY change it, add design and content to it and you MAY charge for that. You may NOT alter the license and you must NOT alter the copyright.
In other words, you must NOT pretend that Ellogon is yours, and you must NOT charge people for Ellogon.Guidelines:
Ellogon is "free" software released under the GNU Lesser General Public License (LGPL).
The word "free'' has two legitimate general meanings; it can refer either to freedom or to price. When we speak of "free software'', we're talking about freedom, not price. (Think of "free speech'', not "free beer''.)
Free software is a matter of the users' freedom to run, copy, distribute, study, change and improve the software. More precisely, it refers to four kinds of freedom, for the users of the software:
- The freedom to run the program, for any purpose.
- The freedom to study how the program works, and adapt it to your needs
- Access to the source code is a precondition for this.
- The freedom to redistribute copies so you can help your neighbour.
- The freedom to improve the program, and release your improvements to the public, so that the whole community benefits.
- Access to the source code is a precondition for this
1. What license is Ellogon released under?
Ellogon is released under the GNU LGPL. A copy of this is included with your copy of Ellogon and can also be found at http://www.fsf.org/licenses/lgpl.html. Unofficial translations can also be found at http://www.fsf.org/licenses/translations.html.
2. Who owns the copyright to Ellogon?
The copyright to Ellogon is held by Georgios Petrou Petasis. Georgios Petrou Petasis is the original author of Ellogon and continues to actively support the project.
3. Are there any restrictions to your use of Ellogon?
The GNU LGPL grants you the freedom to use the software for whatever purpose you see fit.
The LGPL allows everyone the freedom to do this. The right to charge money to distribute Ellogon is part of the definition of "free" software.
When people think of "selling software'', they usually imagine doing it the way most companies do it: making the software proprietary rather than free. So to avoid ambiguity you may charge to distribute the software and any other service you provide along the way. You may not charge for the software itself.
Remember if someone pays your fee the LGPL also gives him or her the freedom to pass on Ellogon with or without a fee.6. May I remove the "copyright" statements from the source code to Ellogon?
No, you must keep all copyright notices and credits in the source code.
7. Does the LGPL mean that my components developed for Ellogon are also LGPL?
No. The copyright and license of Ellogon does not cover the components that you create. Using Ellogon does not place any restrictions, legally, on the license or copyright you use for the components you have created.
8. I have modified Ellogon. Do I have to release these modifications?
LGPL permits anyone to make a modified version for their own use
the requirement to distribute it or pass on those changes to others.
You cannot however distribute modified versions of Ellogon. If you want
to incorporate these modifications into Ellogon, you should report your
modifications to the copyright holders. However, if your modifications
do not modify Ellogon, and Ellogon can be replaced with a newer version
in software you distribute and your software can still work, then you
can distribute your modifications.
9. I have made a modification (hack) to the Ellogon core code. Do I have to release it under the LGPL?
you chose to distribute your modifications to others it must be
released under the same terms that you received the original code. So
your modifications must be released under the LGPL. You may of course
this case modify the headers for the source code to include your own
copyright statement. If you do so you must clearly annotate in the
source code your amendments, changes or additions. It is also a good
idea to notify the original copyright holder about these modifications.
10. I have written a Component, Module, Template for Ellogon. Do I have to release it under the LGPL?
No . The LGPL allows you to write your own extensions for Ellogon and to release those extensions under whatever license you chose.
11. I have written a Component, Module, Template for Ellogon and released it under the LGPL and I charge a fee for it, but website X is giving it away for free.
If someone pays your fee the LGPL also gives him or her the freedom to pass on the software with or without a fee. Placing a restriction on someone's use of LGPL licensed software is in breach of the LGPL itself.
12. May I purchase a copy of Ellogon, which has the copyright statements removed or uses a different license?
Although LGPL does not significantly limit the usage of Ellogon and there is little need for such a request, Yes, you can purchase a copy of Ellogon under a different license from the copyright holders.
13. I believe person A is in breach of the LGPL what should I do?
14. Who has the power to enforce the GNU LGPL license of Ellogon?
Only the copyright holder, Georgios Petrou Petasis, has the power to do this. If the Ellogon Development Team finds, or is made aware of, a breach of the LGPL they will take any necessary action.
This document refers to the software program Ellogon Version 1.x and all subsequent versions, released under the GNU Lesser General Public License and copyright Georgios Petrou Petasis.
This document is subject to additions, modifications and other changes at any time without notice.
A lawyer has not prepared this document. You should consult a lawyer experienced in copyright, licensing and intellectual property for clarification.
Document Rev. 1.0 - 16th February 2005
GNU Lesser General Public License
Version 2.1, February 1999
Copyright (C) 1991, 1999 Free Software Foundation, Inc.
59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
Everyone is permitted to copy and distribute verbatim copies
of this license document, but changing it is not allowed.
[This is the first released version of the Lesser GPL. It also counts
as the successor of the GNU Library Public License, version 2, hence
the version number 2.1.]
The licenses for most software are designed to take away your freedom to share and change it. By contrast, the GNU General Public Licenses are intended to guarantee your freedom to share and change free software--to make sure the software is free for all its users.
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We protect your rights with a two-step method: (1) we copyright the library, and (2) we offer you this license, which gives you legal permission to copy, distribute and/or modify the library.
To protect each distributor, we want to make it very clear that there is no warranty for the free library. Also, if the library is modified by someone else and passed on, the recipients should know that what they have is not the original version, so that the original author's reputation will not be affected by problems that might be introduced by others.
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