PXE is an open source
product. The modules that make up PXE are divided into two groups, and the two groups are licensed under different terms:
- The core modules are covered by the Common Public License 1.0 or CPL. The "Original Contributor" is FiveSight Technologies, Incorporated. FiveSight selected the CPL for the core modules because it provides a balance between free incorporation in other programs and assurance that modifications are returned to the community for reuse.
- The extension modules are covered by the MIT License. The copyright holder is FiveSight Technologies, Inc.. FiveSight selected the MIT License for the extension modules to provide ready-to-use examples and starting points under a very flexible license.
Both the Common Public License 1.0 and the MIT License are OSI-certified open source licenses.
IBM's list of frequently asked questions about the CPL provides answers to many questions about the ways in which these modules can be reused as open source. The most important points are:
- The source code for the program may not be redistributed under a license other than the CPL, nor may source code licensed under another license be incorporated. In particular, CPL-licensed code is incompatible with GPL-licensed code.
- The object code for the unmodified program may be distributed as part of a product or project under a separate license, so long as the CPL portion is distributed under the terms of the CPL. For example, the object code of CPL-licensed program may be incorporated as a library in a program or project distributed under another open source license, provided that the CPL portion is distributed under the terms of the CPL.
- For modifications to the program:
- If neither the source code nor the object code is redistributed, modifications need not be made publicly available.
- If either source code or object code is redistributed, the modifications must also be distributed.
Use of the open source portions of PXE outside of the terms of the CPL would require a separate license from FiveSight/Intalio; contact sales@intalio.com
for more information.
