OP5 Monitor include code from many different Open Source projects in addition to the software written by OP5. The licensing notes for each version of the product includes a list of licenses included in that release.
Licenses can be grouped into the following areas:
- Permissive licenses — a permissive license only carry minimal requirements about how the code and/or the resulting software can be redistributed. Examples of permissive licenses are MIT and BSD.
- Copyleft licenses — a copyleft license allows any use, but prohibits binary-only distribution. An example of copyleft licenses is GPL.
- Proprietary licenses — a proprietary license can carry arbitrary restrictions, and must be investigated on a per-license basis.
The material where copyright is held by OP5 is licensed on various terms depending on the module (see the release notes for more information). The parts that have a proprietary license have historically been using "OP5 Software License", OP5 Immaterial Rights License" and "OP5 AB Proprietary Software License" and are listed as such in the release notes. These have been replaced by the OP5 end-user license agreement (EULA).
OP5 Appliance System (APS) is, in addition, based on the operating system from CentOS. Regarding licenses related to CentOS, please visit their website for more information.