Shorewall configuration files for shorewall multi-interface firewall with blacklist enabled.
apt-get install shorewall
rm -frv /etc/shorewall
git clone git@github.com:mckinnon81/single-shorewall.git /etc/shorewall
shorewall refresh
shorewall restart
To have shorewall start on start up
vi /etc/default/shorewall
Change
startup=0
to
startup=1