Introduction to Firewalls (continued)
Summary
An explanation of firewalls, types of firewalls, stateless vs stateful filtering, placement of firewalls within a network, examples of firewall rules, and the importance of having an established security policy.
13:31 - Adding an input rule to iptables
14:55 - Flushing all firewall rules from iptables
Reference Materials
Guide to Network Defense and Countermeasures - Chapter 9
Additional Information
Building a firewall, Part 1 (of 3): http://www.windowsecurity.com/whitepa...