Networking Essentials: A CompTIA Network+ N10-007 Textbook, Fifth Edition

Chapter 12. Network Security

Chapter Outline

12-1 Introduction

12-2 Intrusion: How Attackers Gain Control of a Network

12-3 Denial of Service

12-4 Security Software and Hardware

12-5 Managing Network Access

12-6 Introduction to Virtual Private Networks

12-7 Wireless Security

Summary

Questions and Problems

Objectives

• Examine how attackers gain control of a network

• Understand how denial of service attacks are initiated

• Examine the security software and hardware used to protect a network

• Understand VPN technologies

• Understand wireless security issues

Key Terms

social engineering

password cracking

dictionary attack

brute-force attack

packet sniffing

IPsec

man-in-the-middle

ARP cache poisoning

evil twin

session hijacking

buffer overflow

netstat ...