Bibliography

1

Debian.

http://www.debian.org.

2

Netfilter.

http://www.netfilter.org.

3

Shorewall.

http://www.shorewall.net.

4

Oskar Andreasson.
Iptables tutorial.

http://iptables-tutorial.frozentux.net/iptables-tutorial.html.

5

Anders Fugmann.
Fiaif is an intelligent firewall.

http://www.fiaif.net.

6

Mandrakesoft.
Multi network firewall.

http://www.mandrakesoft.com/products/mnf.