Lynis is an open-source security auditing and compliance tool designed for Unix-based systems such as Linux, macOS, and BSD. It is widely used to assess and strengthen system security, identify vulnerabilities, and ensure compliance with industry standards. Lynis is popular among system administrators, security professionals, and auditors for its comprehensive analysis capabilities.

Features of Lynis:

• Extensive security and compliance checks.
• Audits for system hardening and performance improvements.
• Detailed reporting with actionable recommendations.
• Support for various plugins and custom profiles.
• Integration with CI/CD pipelines and security workflows.
• Cross-platform compatibility for Unix-based systems.

To check the Lynis version, run: $ lynis --version

Disclaimer: Lynis is a highly versatile auditing tool that requires a thorough understanding of its output to make informed decisions. It is provided as an open-source utility, with no warranty, express or implied. Users should apply recommended changes cautiously, especially in production environments.