Road Map

• Ipchains revisited

• Phase 1:Crawl before walk

• A Simple Case

• Prerequisites

• Finding the DHCP address

• Barebones ipchains

• Starting point

• Set a policy for forward chain

• Now add the masquerade

• Phase 2: Pull up the drawbridges

• /etc/inetd.conf

• Phase 3: Testing

• Phase 4: On to greater things

• Appendix: Script example

• Script example, con't

• Script example con't

• Script example con't

Notes: