Lynis Security Controls

NAME-4402 - Duplicate entries in hosts file


This test found multiple duplicates in the hosts file



How to solve

When one hostname is more than once defined, it may be caused by automation tooling or manual efforts. This is a sign to check for and find the related cause.

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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 NAME-4402. 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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