Network Protocols for Security: DNS
In this lab, you'll practice creating network traffic to analyze how DNS queries and responses operate. When you're finished, you'll have a fundamental understanding on how to find anomalies within DNS.
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
DNS Queries and Responses
In this challenge, you'll perform a typical DNS request as part of normal web traffic to understand how DNS queries and responses operate.
Challenge
Modifying Traffic Flow
This challenge will have you modifying the local hosts file to see one method DNS can be taken advantage of with.
Challenge
Detecting DNS C2
In this challenge, you'll analyze another method with which DNS can be taken advantage of while analyzing a malicious command and control conversation.
Challenge
The Final Challenge
The last challenge of this lab and your last chance to experience the environment before clicking Next and ending this small 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
- No security experience required
- System or Network Administration is helpful, but not required
- Linux command line is helpful, but not required