This unit investigates processes of security at local and network levels, including security policies and practices, software, hardware and human issues. Content includes: physical and system security; cryptosystems; authentication and authorization; Access Control List (ACL); firewalls and port security; secure and insecure web protocols (e.g. telnet, ssh); secure email protocols (e.g. PGP and S/MIME); intrusion detection and system hardening; security in Virtual Private Networks (VPN).

Unit details

Study level:
Credit points:
Unit code:


NIT1104 - Computer Networks

Learning Outcomes

On successful completion of this unit, students will be able to:
  1. Investigate a system for security vulnerabilities by managing and using system security and logging tool;  
  2. Identify strengths and weaknesses in security products and apply security tools to strengthen a networked system;  
  3. Analyse a system for deploying appropriate security solutions including security policies and practices;  
  4. Design and implement a security solution given a set of constraints.  


Assessment type Description Grade
Laboratory Work Practical Lab Work 20%
Assignment Individual Assignment (solving practical problems) 40%
Test Written Test 40%

Required reading

Lecturer may supply additional/alternative material.

CompTIA Security + Guide to Network Security Fundamentals 6th ed.
Mark Ciampa (2017)
Cengage Learning UK Security 2.0

REFERENCE TEXTS: Jie Wang, Zachary A. Kissel (2015) Introduction to Network Security: Theory and Practice 2nd ed. John Wiley & Sons (Asia)

Where to next?

As part of a course

This unit is studied as part of the following courses. Refer to the course page for information on how to apply for the course.

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