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Lynis - Security auditing tool for Linux, macOS, and UNIX-based systems. Assists with compliance testing (HIPAA/ISO27001/PCI DSS) and system hardening. Agentless, and installation optional.
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README.md

lynis

Lynis - Security auditing and hardening tool, for Unix based systems

Lynis is a security auditing for UNIX derivatives like Linux, Mac OS X, BSD, and Solaris. It performs an in-depth security scan on the system itself, with the goal to detect issues and provide tips for further system hardening. It will also scan for general system information, vulnerable software packages, and possible configuration issues. Lynis is commonly used by people in the "blue team" to assess the security defenses of their systems.

We believe software should be simple, updated on a regular basis, and open. You should be able to trust, understand, and have the option to change the software. Many agree with us, as the software is being used by thousands every day to protect their systems.

Main goals:

  • Automated security auditing
  • Compliance testing (e.g. PCI-DSS, HIPAA)
  • Vulnerability detection

The software aims to also assist with:

  • Configuration management
  • Software patch management
  • System hardening
  • Penetration testing
  • Malware scanning
  • Intrusion detection

License:

  • GPLv3

Typical users of the software:

  • System administrators
  • Auditors
  • Security officers
  • Security professionals

First run

  1. Clone or download the project files. No compilation or installation is required.
  2. Execute: ./lynis audit system

If you want to run the software as root, we suggest changing the ownership of the files. Use chown -R and chgrp -R to recursively alter the owner and group.

Documentation

Full documentation: https://cisofy.com/documentation/lynis/

Flexibility

If you want to create your own tests, use the 'tests_custom' file (template available in 'include' directory).

Enterprise version

This software is also available as part of an enterprise solution. It includes additional functionality (plugins, centralized system, reporting, dashboard), and support.

Contribute

Do you have an improvement? Create an issue in the tracker on GitHub, or send us an e-mail: lynis-dev@cisofy.com. More details can be found at Contributors Guide.