rsync
rsync was originally written by Andrew Tridgell and is currently maintained by Wayne Davison. It has been improved by many developers from around the world.
License
rsync may be used, modified and redistributed only under the terms of the GNU General Public License, found at:
http://www.fsf.org/licenses/gpl.html
The GNU General Public License applies just to rsync and no other components of Vertica.
You are entitled to receive the source code for such software. For no less than three years from the date you obtained this software package, you may download a copy of the source code for the software in this package licensed under the GPL at no charge by visiting:
http://www.vertica.com/licenses/rsync-3.0.7.tar.gz
You can download this source code so it remains separate from other software on your computer system.