Learn How to Hack with: Lynis – System and Security Auditing Tool

Lynis is one of the most popular open source security auditing tool. It was developed with the goal of security auditing of Linux based operating system. Since we know that everything in Linux is a file so it checks for every install software and configuration file for possible flaws in the operating system.

lynis tool

In the Lynis checklist, it contains many tests which are also included in many standards like GLBA, HIPAA, PCI DS, and SOX, etc. Lynis is used by security auditors, penetration tester and security engineers also.
Compatible Operating System with Lynis
  • Arch Linux
  • Kali Linux
  • Debian
  • Ubuntu
  • Linux Mint
  • NetBSD
  • OpenBSD
  • CentOS
  • etc.
How to use Lynis?
Sample Output:
Initialize:

lynis command

System Tools:

system tools

Boot & Services & Memory & Process

boot ,services

User, Group and Authentication

authenticity

File System & Storage

file system

Port and Networking

networking

Printer & spools

printers

Services

services
Hardening

Hardening

Logs
logs

Run lynis with categories

Sometime lynis result become too messy for if want a check for few categories so lynis provide –test-
categories
option which gives you the power of testing custom categories.
Run lynis as Cron Jobs Lynis can be run as a cron job for regular auditing in the system. Just create a script and upload it into a cron job folder.

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