Unit 9: Networking
Computer networking has become an increasingly important field. When we discuss networking, we are not just referring to connecting computers together in one location but also about broader connections through the Internet.

Completing this unit should take you approximately 11 hours.
- Upon successful completion of this unit, you will be able to:
  explain basic networking principles;
  discuss protocols and how they are used; and
  explain reference models, particularly TCP/IP and OSI.
- 9.1: Introduction
  - Massachusetts Institute of Technology: Hari Balakrishnan and Samuel Madden's "Introduction to Networks" Page
    Watch this lecture.
  - Olivier Bonaventure's "Computer Networking" URL
    Read this introduction.
  - University of California, Berkeley: John Kubiatowicz's "Networking II" Page
    Watch this lecture.
- 9.2: Protocol Architecture
  - Massachusetts Institute of Technology: Hari Balakrishnan and Samuel Madden's "Layering and Link Layer" Page
    Watch this lecture.
- 9.3: The Reference Models
  - Olivier Bonaventure's "Computer Networking" URL
    Read this section.
  - Haifa Linux Club: "TCP/IP Networking" URL
    Read these slides.
  - Gary C. Kessler's "An Overview of TCP/IP Protocols and the Internet" URL
    Read this section.
  - Aleksa Majkic's "The Osi Model Animation" Page
    Watch this animation.
  - San Francisco City College: Isaias Leiva's "Introduction to the OSI Model" Page
    Watch this video.
- 9.4: Network Intrusion Detection
  - National Institutes of Standards and Technology: Karen Scarfone's and Peter Mell's "Guide to Intrusion Detection and Prevention Systems" URL
    Read chapters 4, 5, and 6.

Unit 9: Networking

9.1: Introduction

9.2: Protocol Architecture

9.3: The Reference Models

9.4: Network Intrusion Detection