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)

Wireshark filter cheat sheet

This will only show packets containing the selected IP address. This can be either the source or the destination IP:

ip.addr ==x.x.x.x

This will show the communication between two IP addresses, which can be from the direction of the source or the destination:

ip.addr ==x.x.x.x && ip.addr ==x.x.x.x

You could also just type in the name of the protocol that you want to see:

http or dns

This filter will only show the TCP packets that are passing through the specified port number:


You may further specify the details of this filtering option to narrow your search of the TCP packets:


To identify certain types of web traffic, such as requests that are being made to certain websites on the network, enter the following:


Put an exclamation in front followed by the initial parentheses:

!(arp or icmp or dns)

tcp contains searches for exact...