NTP and Time Synchronization Services
Keep Linux clocks accurate with NTP using chrony and timedatectl, and understand why synchronized time is critical for networked services.
Why Time Matters
Accurate clocks are essential for networked systems. Logs, TLS certificates, authentication tokens, and distributed databases all break when clocks drift apart. The Network Time Protocol (NTP) keeps them aligned.
How NTP Works
NTP clients query time servers, measure the network round-trip, and gradually adjust the local clock. It corrects for delay so even over the internet machines stay within milliseconds.
All lessons in this course
- SSH for Secure Remote Access
- HTTP/HTTPS Web Services
- DHCP and DNS Services
- NTP and Time Synchronization Services