Lynis Security Controls

TIME-3104 - Running NTP daemon


Proper time synchronization is important for authentication services, forensics and troubleshooting. Therefore a time daemon (like ntpd) should be running, or a scheduled task to sync time (like ntpdate).



How to solve

Configure a NTP daemon to keep the time in sync with a time server. Most distributions have a "ntp" package available, which can be configured to regularly update the time. If you don't have an internal time server, we suggest to have a look at the website, for time servers in your region.

Additional resources

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-3104. 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