Startup script Firewall (fwbuilder)
source: http://blog.miralinux.net/files/linux/local/etc/init.d/firewall
[include]../../../files/linux/local/etc/init.d/firewall[/include]
PFsense
http://www.smallnetbuilder.com/security/security-howto/31433-build-your-own-utm-with-pfsense-part-1