- Lab
- Security
Firewall Evasion with Nmap
In this lab, you'll practice firewall evasion techniques using Nmap. When you're finished, you'll have practical experience bypassing simple firewall rules, and an understanding of how different scan techniques can reveal hidden services.
Path Info
Table of Contents
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Challenge
Getting Started in the Lab Environment
Here are the initial instructions and explanation of the lab environment. Read this while your environment is busy creating itself from nothing. Yes, this violates physics; we know. How fun!
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Challenge
Stealth Scanning Techniques
To start the lab, you'll learn how to use specialized TCP flag combinations in Nmap to bypass basic firewall rules that block standard TCP connect and SYN scans.
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Challenge
Packet Manipulation Techniques
You'll explore how modifying packet characteristics can help evade firewall inspection. You'll also experiment with packet fragmentation and source port spoofing to find additional ways to discover services.
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Challenge
The Last Challenge
Welcome to the final challenge! This is your last chance to experiment in the environment. Clicking Finish Lab will end this little world that flittered into existence just for you.
What's a lab?
Hands-on Labs are real environments created by industry experts to help you learn. These environments help you gain knowledge and experience, practice without compromising your system, test without risk, destroy without fear, and let you learn from your mistakes. Hands-on Labs: practice your skills before delivering in the real world.
Provided environment for hands-on practice
We will provide the credentials and environment necessary for you to practice right within your browser.
Guided walkthrough
Follow along with the author’s guided walkthrough and build something new in your provided environment!
Did you know?
On average, you retain 75% more of your learning if you get time for practice.