NTP Style Guide
crefft > Infrastructure > NTP
The key words “MUST”, “MUST NOT”, “REQUIRED”, “SHALL”, “SHALL NOT”, “SHOULD”, “SHOULD NOT”, “RECOMMENDED”, “MAY”, and “OPTIONAL” in this document are to be interpreted as described in RFC 2119.
Quick Reference
| Task | Tool | Command |
|---|---|---|
| Install | apt | apt install chrony |
| Check sync | chronyc | chronyc tracking |
| List sources | chronyc | chronyc sources -v |
Overview
TODO: Time synchronization with chrony for Debian systems.
Configuration
TODO: /etc/chrony/chrony.conf configuration.
Hardening
TODO: NTS (Network Time Security), access control.
Monitoring
TODO: Prometheus chrony exporter, alerting on drift.
See Also
- Linux Guide — Base OS configuration
- SSH Guide — Secure remote access