Book Image

Applied Network Security

By : Arthur Salmon, Michael McLafferty, Warun Levesque
Book Image

Applied Network Security

By: Arthur Salmon, Michael McLafferty, Warun Levesque

Overview of this book

Computer networks are increasing at an exponential rate and the most challenging factor organisations are currently facing is network security. Breaching a network is not considered an ingenious effort anymore, so it is very important to gain expertise in securing your network. The book begins by showing you how to identify malicious network behaviour and improve your wireless security. We will teach you what network sniffing is, the various tools associated with it, and how to scan for vulnerable wireless networks. Then we’ll show you how attackers hide the payloads and bypass the victim’s antivirus. Furthermore, we’ll teach you how to spoof IP / MAC address and perform an SQL injection attack and prevent it on your website. We will create an evil twin and demonstrate how to intercept network traffic. Later, you will get familiar with Shodan and Intrusion Detection and will explore the features and tools associated with it. Toward the end, we cover tools such as Yardstick, Ubertooth, Wifi Pineapple, and Alfa used for wireless penetration testing and auditing. This book will show the tools and platform to ethically hack your own network whether it is for your business or for your personal home Wi-Fi.
Table of Contents (18 chapters)

Summary of differences

Placement Out-of-band or not in the direct lines of communication In-band or in the direct pathway of communication
System type Passive (monitoring and notify) Active (monitoring and ability to take action)
Detection mechanisms

Signature detection

Exploit facing

Statistical anomaly-based detection

Signature detection

Exploit facing or vulnerability facing

Keep in mind that an IDS listens and reports, but does not take any action, while the IPS listens and takes action if criteria is met.


A common way of looking at network security in terms of intrusion system is:

Security = Visibility + Control

Typically, the network and security teams place controls on a network, but how do they know if those controls are working...