COPYING

Copyright (c) 2002-2010 BalaBit IT Security Ltd.
Copyright (c) 1996-2010 Balázs Scheidler

syslog-ng is licensed under the combination of the GPL and LGPL licenses.

The syslog-ng core (src/ subdirectory) is licensed under the
Lesser General Public License as described in the file LGPL.txt

The syslog-ng modules (src/xxxx/ subdirectories) are licensed under the
General Public License as described in the file GPL.txt

FAQ:
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The questions and answers below try to summarize the intentions behind this
licensing scheme.

Q: Is it possible to create derived works of syslog-ng under the GPL/LGPL
licenses?

A: Yes, that's exactly the point of open source. Works derived from the
plugins will have to use the GPL license, but you can choose to use LGPL for
them as well.

Q: Do I need to sign a Contributory License Agreement in order for my
contribution to be accepted?

A: No, starting with syslog-ng 3.2, you don't need to sign a CLA in order to
have your contributions accepted.

Q: Is it possible to create non-free plugins for syslog-ng?

A: Yes. It is our understanding that plugins are derived works of the
syslog-ng core but not derived works of other plugins.  Thus, non-free
plugins are possible, provided they do not link to any of the GPLd plugins
explicitly and the only connection between two plugins is via the syslog-ng
core.

Q: Who is permitted to create non-free plugins for syslog-ng? Is it just
BalaBit (the current copyright holder as of the initial 3.2 release)?

A: No, everyone including BalaBit.