Network Forensics: tcpdump
This lab is crafted to introduce you to tcpdump, a vital command-line tool for capturing and analyzing network traffic. We'll explore its basic fundamentals, including syntax, command-line options, and capabilities, such as utilizing the grep command for enhanced analysis. Whether you're looking to deepen your existing knowledge or embark on a new area of expertise, this course will equip you with the skills to dissect network behavior effectively, a skill indispensable in the cybersecurity landscape.
Terms and conditions apply.
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!
Challenge
Understanding tcpdump Basics
In this challenge, you will gain a basic understanding of the fundamental aspects of tcpdump. You will explore its basic syntax, command-line options, and various capabilities that make it a powerful network traffic analysis tool.
Challenge
Monitoring Network Traffic
In this challenge you will understand the importance of monitoring network traffic for security purposes and learn various techniques to investigate suspicious network traffic.
Challenge
Using tcpdump and grep
In this challenge, you will learn the fundamentals of Grep (Global Regular Expression Print), a command-line utility prevalent in Unix-like operating systems. Grep enables you to search and filter text by specific patterns or regular expressions within files or input streams
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.
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.
Recommended prerequisites
- Familiarity with Command-Line Interfaces
- Familiarity with fundamental networking concepts such as IP addresses, TCP/IP protocols
- A fundamental understanding of TCP/IP packets, including their structure and components
- Basic familiarity of bitwise and logic operation