TigerCube uses a wide range of open source components. The linux core of the system is based on CentOS linux (www.centos.org).
source RPMS
You can view and download all the source RPMS to the open source components included in TigerCube by visiting:
http://dist.tigercube.net/tigercube/2.0/SRPMS/
tiger VPN Warrior
TigerCube is committed to open source and will, in due course, be releasing the source to TigerVPN Warrior and other components of the system.