Popular licensing models Apache Software License 2.0 Allows use of the source code for the development of proprietary software as well as free and open source software. The Apache License does not require modified versions of the software to be distributed using the same license nor even that it be distributed as free/open-source software The Apache license only requires that a notice is kept informing recipients that Apache licensed code has been used. Derived work can be under any license. New and Simplified BSD Licenses. Allows unlimited redistribution for any purpose as long as its copyright notices and the license's disclaimers of warranty are maintained. The license also contains a clause restricting use of the names of contributors for endorsement of a derived work without specific permission. GNU General Public License (GPL) The GPL grants the recipients of a computer program the rights of the free software definition and uses copyleft to ensure the freedoms are preserved, even when the work is changed or added to. Derived work has to be under the same license. GNU Lesser General Public License (LGPL) The LGPL places copyleft restrictions on the program itself but does not apply these restrictions to other software that merely links with the program. There are, however, certain other restrictions on this software. You can use the software that’s under LPGL mainly libraires and not be forced to have your work using the same license MIT License You can reuse the code within proprietary software on the condition that the license is distributed with that software.Most permissible of all licenses. Mozilla Public License (MPL) 1.1 Source code copied or changed under the MPL must stay under the MPL. What license type allows me to deploy applications "just like that"? Any so long as it is open source approved, no restrictions are placed on the deployment. 1. Is RedHat opensource? Can I download it and just install on a site (assuming am not interested in their support/subscription package) Redhat Advance server is open source. You can download and install just like that but you wouldn't be ale to get updates till you subscribe to them. 2. And what in hell is a "Commercial Opensource" product? Sounds like an oxymoron to me. What most companies do as means of generating revenue, they have an enterprise version which includes support and other features that wouldn't be available on the normal community version. 3. Does a change in license type apply to already deployed products? For instance, if Oracle changes the MySQL license, will it affect the already running instances? No, the license in play is the one you agreed to when installing the software. If Oracle change the license today, it would only affect the new versions, and unless you are not planning to upgrade it will eventually affect you too. Simiyu
Thanx all for the quick response. Really appreciated On Thu, Apr 23, 2009 at 2:44 PM, Arthur Simiyu <arthursimiyu@yahoo.com>wrote:
Popular licensing models
*Apache Software License 2.0*
Allows use of the source code for the development of proprietary software as well as free and open source software.
The Apache License does not require modified versions of the software to be distributed using the same license nor even that it be distributed as free/open-source software
The Apache license only requires that a notice is kept informing recipients that Apache licensed code has been used.
Derived work can be under any license.* *
* *
*New and Simplified BSD Licenses.*
Allows unlimited redistribution for any purpose as long as its copyright notices and the license's disclaimers of warranty are maintained. The license also contains a clause restricting use of the names of contributors for endorsement of a derived work without specific permission. * *
* *
*GNU General Public License (GPL)*
The GPL grants the recipients of a computer program the rights of the free software definition and uses copyleft to ensure the freedoms are preserved, even when the work is changed or added to.
Derived work has to be under the same license.
*GNU Lesser General Public License (LGPL)*
The LGPL places copyleft restrictions on the program itself but does not apply these restrictions to other software that merely links with the program. There are, however, certain other restrictions on this software.
You can use the software that’s under LPGL mainly libraires and not be forced to have your work using the same license
*MIT License*
You can reuse the code within proprietary software on the condition that the license is distributed with that software.
Most permissible of all licenses.
*Mozilla Public License (MPL) 1.1* Source code copied or changed under the MPL must stay under the MPL.
What license type allows me to deploy applications "just like that"?
Any so long as it is open source approved, no restrictions are placed on the deployment.
1. Is RedHat opensource? Can I download it and just install on a site (assuming am not interested in their support/subscription package)
Redhat Advance server is open source. You can download and install just like that but you wouldn't be ale to get updates till you subscribe to them.
2. And what in hell is a "Commercial Opensource" product? Sounds like an oxymoron to me.
What most companies do as means of generating revenue, they have an enterprise version which includes support and other features that wouldn't be available on the normal community version.
3. Does a change in license type apply to already deployed products? For instance, if Oracle changes the MySQL license, will it affect the already running instances?
No, the license in play is the one you agreed to when installing the software. If Oracle change the license today, it would only affect the new versions, and unless you are not planning to upgrade it will eventually affect you too.
Simiyu
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Arthur Simiyu -
Mr. Lawi