Outcome 3:Understand Security Threats and Protection

Table of Contents

1. Introduction
2. Security threats
3. Protection Methods
   1. Browser settings
   2. How to change Settings
   3. E-mail filters
   4. Anti-Malware Software
   5. Security Zones
   6. Public and Private
   7. Demilitarised Zone (DMZ)
   8. Implementing a DMZ
   9. Intranets and Extranets
   10. VPN Activity
   11. Intrusion Detection Systems
4. Summary
5. SAQ 1

Implementing a DMZ

There are a number of ways of using firewalls and routers to implement a demilitarised zone. The two most common methods can be seen using the links below.

Triple Homed Bastion Host

Screened Subnet

Next: Intranets and Extranets