Week 13: Firewalls & VPNs

Lecture notes:
Firewalls - lecture slides (6 per page)
Supplemental notes:
Chapter 7. Packet Filtering, Guide to IP Layer Network Administration with Linux, version 0.4.5, Martin A. Brown
25.3 About Packet-filtering Firewalls , Oracle Linux Administrator's Guide for Release 6
Web Security: Are You Part Of The Problem? — Smashing Magazine
Enter the secure shell
Wikipedia article on spyware

Buzzwords:
packet filter/screening router, filtering rules (chains), stateless inspection, stateful inspection, deep packet inspection, application proxy, dual-homed host, bastion host, access router, choke router, screened subnet.