Our Scenarios
System Security Hardening, Systems Administration

Introduction to Cracklib


This scenario is an introduction to using Cracklib to check password strength on Ubuntu. Disclaimer! This scenario is based on content from: - https://www.cyberciti.biz/security/linux-password-strength-checker/ - https://www.poftut.com/check-password-strength-linux-cracklib/

Based on the original content, we have improved on it as shown: 1. Availed a virtual environment with virtual machines to test the commands and configurations. 2. Mapped the network configuration to allow easy access.

What you will learn

After completing the scenario, participants will learn how to check the strengths of their passwords using Cracklib. Specifically, this scenario addresses the following competences: - Importance of password security - How to install and use Cracklib to increase password strength.

Scenario Pre-requisites / recommendations

This scenario requires basic knowledge in Linux operating systems.

Technical Details

  • This scenario uses a Virtual Machine with Ubuntu that will enable you to test the commands and configurations.
  • All packages have been installed for you but not configured as the VMs don't have internet access. Any install commands shown are for reference purposes only and should not be run.