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Kali Linux - An Ethical Hacker's Cookbook

You're reading from   Kali Linux - An Ethical Hacker's Cookbook Practical recipes that combine strategies, attacks, and tools for advanced penetration testing

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Product type Paperback
Published in Mar 2019
Publisher Packt
ISBN-13 9781789952308
Length 472 pages
Edition 2nd Edition
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Author (1):
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Himanshu Sharma Himanshu Sharma
Author Profile Icon Himanshu Sharma
Himanshu Sharma
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Toc

Table of Contents (15) Chapters Close

Preface 1. Kali - An Introduction 2. Gathering Intel and Planning Attack Strategies FREE CHAPTER 3. Vulnerability Assessment - Poking for Holes 4. Web App Exploitation - Beyond OWASP Top 10 5. Network Exploitation 6. Wireless Attacks - Getting Past Aircrack-ng 7. Password Attacks - The Fault in Their Stars 8. Have Shell, Now What? 9. Buffer Overflows 10. Elementary, My Dear Watson - Digital Forensics 11. Playing with Software-Defined Radios 12. Kali in Your Pocket - NetHunters and Raspberries 13. Writing Reports 14. Other Books You May Enjoy

Bypassing firewalls with Nmap

Most of the time, during a pentest, we will come across systems that are protected by firewalls or intrusion detection systems (IDS). Nmap provides different ways of bypassing these IDS firewalls to perform a port scan on a network.

In this recipe, we will learn about some of the ways of bypassing firewalls.

How to do it...

Let's learn how to use the ACK, TCP Window, and Idle scans.

TCP ACK scan (-sA)

The ACK scan is used to show unfiltered and filtered ports instead of open and closed ports:

  1. The command for an ACK scan is as follows...
You have been reading a chapter from
Kali Linux - An Ethical Hacker's Cookbook - Second Edition
Published in: Mar 2019
Publisher: Packt
ISBN-13: 9781789952308
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