Lynis Security Controls
NAME-4028 - DNS domain name
DNS resolving is part of the network functionality of systems. Properly configured network settings are needed for providing business services. Unix based systems are usually part of a domain. This domain name is the DNS domain name of the company. Lynis tries to determine what domain name this is, by checking several configuration files. In case this control shows up, Lynis was unable to discover it properly. This might indicate a misconfiguration of the server, or an alternative configuration set-up being used. Check the system and network configuration for the possible cause.
How to solve
Check lynis.log file for any hints why no domain name could be found.
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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-4028. 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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