Lynis Security Controls

TIME-3124 - NTP time local source used


When only a local source is being used on a system, it might indicate that external sources are not reachable or usable. The NTP configuration and time synchronization in particular, is important for systems. It helps with properly logging the actual time, which is needed for many services. Having the right time is also important for accounting purposes and forensics. Check the NTP configuration of this system to determine the cause of this finding.



How to solve

Check the peers list (ntpq -p) to determine if there are any NTP servers configured. If they are all listed are faulty (e.g. stratum 16), check your firewall or router configuration.

Perform daily health checks of your environment, learn in-depth system hardening, and protect your systems better.

Upgrade to Lynis Enterprise

Linux and Unix System Hardening

This information is provided as part of the Lynis community project. It is related to Lynis control TIME-3124. 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.

Lynis Enterprise

Need more advanced features, like vulnerability scanning, or reporting installed software packages? Lynis Enterprise will collect more data and present it with an easy to use web interface.

Gain additional benefits: automating security audits, reporting, and the implementation of related security measures.

Lynis Enterprise includes
  • Centralized management
  • Prioritized plans
  • Reporting
  • Dashboards
  • Integration (API)
  • Improvement snippets for tools like Ansible, Chef, Cfengine, Puppet, and SaltStack

Take the Tour