Lynis Security Controls

FINT-4350 - Install a file integrity tool


To monitor for unauthorized changes, a file integrity tool can help with the detection of such event. Each time the contents or the properties of a file change, it will have a different checksum. With regular checks of the related integrity database, discovering changes becomes easy.Install a tool like AIDE, Samhain or Tripwire to monitor important system and data files. Additionally configure the tool to alert system or security personnel on events.


File Integrity

How to solve

Install a tool like AIDE to help monitoring file changes. Good monitoring will ensure that both authorized changes are properly documented, and unauthorized changes are detected early.

Tip: when possible, link events to a (security) monitoring system, or your ITIL problem management. Especially unauthorized changes need a root cause analysis, or trigger incident response.

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Linux and Unix System Hardening

This information is provided as part of the Lynis community project. It is related to Lynis control FINT-4350. All information should be considered as-is, without guarantees. Any advice or snippets should be tested before implementing in production environments.


Lynis is a technical security audit tool for Unix flavors like Linux, macOS, AIX, Solaris, and *BSD. It is open source software and free to use. The project has an active community, including open development via GitHub.

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