Lesson Objectives Lesson Information Slideshow References Questions
Lesson Objectives
- Describe the functions of a firewall
- Explain the limitations of firewalls
- Identify well known ports used for different network services
- Describe the functionality of a packet filtering firewall
- Illustrate potential problems with packet filtering (ftp connections, etc.)
- Describe the functionality of application-level gateways
- Summarize the strengths and weaknesses of the different categories of firewalls
Lesson Information
Slideshow
Introduction to Network Protocols
Network Protocols and Security (PowerPoint)
Network Protocols and Security (PostScript)
References
Pfleeger, Charles, Security in Computing, 2nd Ed., 1997, Prentice-Hall.
Cheswick and Bellovin, Firewalls and Internet Security, 1994, Addison-Wesley
Questions