How to Install Lynis Security Audit

Step 1: Add Lynis Repository (Ubuntu/Debian)

sudo apt-key adv --keyserver keyserver.ubuntu.com --recv-keys C80E383C3DE9F082E01391A0366C67DE91CA5D5F
sudo add-apt-repository "deb https://packages.cisofy.com/community/lynis/deb/ stable main"

Step 2: Install Lynis

sudo apt update && sudo apt install lynis -y

Step 3: Verify Installation

lynis --version