Implement Basic Network Security
In this lab, you practice basic network security. When you’re finished, you’ll have implemented network security using namespaces and iptables, and will have practiced monitoring connections using tcpdump and Wireshark.
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
Protect Against Intruders
To start this lab, you will practice protecting the network by implementing security on a single host.
Challenge
Rate-Limit and Police Traffic
In this challenge, you practice policing traffic. When you’re finished, you’ll have implemented rate limiting.
Challenge
Secure Access Control
To finish the lab, you will practice basic access control, examining telnet and SSH connections.
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
- Basic networking concepts such as TCP, ARP, IPs
- Associated networking commands, like ping
- Familiarity with the Linux CLI