Lynis is an open-source security auditing tool for UNIX derivatives like Linux, macOS, BSD, Solaris, AIX, and others, developed by Cisofy. It performs an extensive health scan of your systems to support system hardening and compliance testing.
Download repository key :
sudo apt-key adv --keyserver keyserver.ubuntu.com --recv-keys C80E383C3DE9F082E01391A0366C67DE91CA5D5F
sudo apt install apt-transport-https
Add lynis repository :
sudo add-apt-repository "deb https://packages.cisofy.com/community/lynis/deb/ stable main"
Then update your packages list and install lynis
apt update && apt install lynis
Running system audit
lynis audit system