Book Image

Kali Linux 2 - Assuring Security by Penetration Testing - Third Edition

By : Gerard Johansen, Lee Allen, Tedi Heriyanto, Shakeel Ali
Book Image

Kali Linux 2 - Assuring Security by Penetration Testing - Third Edition

By: Gerard Johansen, Lee Allen, Tedi Heriyanto, Shakeel Ali

Overview of this book

Kali Linux is a comprehensive penetration testing platform with advanced tools to identify, detect, and exploit the vulnerabilities uncovered in the target network environment. With Kali Linux, you can apply appropriate testing methodology with defined business objectives and a scheduled test plan, resulting in a successful penetration testing project engagement. Kali Linux – Assuring Security by Penetration Testing is a fully focused, structured book providing guidance on developing practical penetration testing skills by demonstrating cutting-edge hacker tools and techniques with a coherent, step-by-step approach. This book offers you all of the essential lab preparation and testing procedures that reflect real-world attack scenarios from a business perspective, in today's digital age.
Table of Contents (24 chapters)
Kali Linux 2 – Assuring Security by Penetration Testing Third Edition
Credits
Disclaimer
About the Authors
About the Reviewer
www.PacktPub.com
Preface
Index

OS fingerprinting


After we know that the target machine is alive, we can then find out the operating system used by the target machine. This method is commonly known as Operating System (OS) fingerprinting. There are two methods of doing OS fingerprinting: active and passive.

In the active method, the tool sends network packets to the target machine and then determines the OS of the target machine based on the analysis done on the response it has received. The advantage of this method is that the fingerprinting process is fast. However, the disadvantage is that the target machine may notice our attempt to get its operating system's information.

To overcome the active method's disadvantage, there is a passive method of OS fingerprinting. This method was pioneered by Michal Zalewsky when he released a tool called p0f. The major advantage of passive OS fingerprinting is that it does the work while reducing the interaction between the testing machine and the target, greatly increasing the stealth...