Step by Step Guide to Setup Lynis Security Audit Tool on Ubuntu 20.04 LTS

Lynis is a free & open-source security audit tool. It is installed by system administrators and security professionals to find the system vulnerabilities. It is easy to use & easy to scan the system. We can easily scan application patch management, file system, ports, Software malware, kernel vulnerability & etc.

There are few steps to install Lynis on ubuntu:

Step 1: Update the System.

apt-get update

Step 2: Check Available Lynis version provides by universe ubuntu 20.04  repo.

apt-cache policy lynis

• Here is the command output.

Step 3: Install PGP key & Repo.

wget -O - https://packages.cisofy.com/keys/cisofy-software-public.key | sudo apt-key add -
echo "deb https://packages.cisofy.com/community/lynis/deb/ stable main" | sudo tee /etc/apt/sources.list.d/cisofy-lynis.list

• Here is the command output.

Step 4: Install the required package.

apt-get install apt-transport-https

• Update the package.

apt-get update

Step 5: Install Lynis on System.

apt-get install lynis

• Check Lynis version.

lynis show version

• Here is the command output.

• Check Available version.

lynis update info

• Here is the command output.

Step 6: Some Lynis Syntax.

lynis [scan mode] [other options]

• To show commands.

lynis show commands

• Here is the command output.

• List the Lynis settings.

lynis show settings

• Here is the command output.

• List the audit profile.

lynis show profiles

• Here is the command output.

Step 7: Audit the System.

lynis audit system

• Here is the command output.

• System tools & Boot-servcies info.

• Kernel,Memory,Processes & unser info.

• File system & USB devices info.

• Ports,Networking & Printer info.

• Software:firewall & web server info.

• Databases & PHP info.

• Lynis Secuirty scan details.