# NTP and Time Synchronization

> Master Network Time Protocol (NTP) fundamentals, understand time synchronization mechanics, and learn to secure NTP against amplification and spoofing attacks.

Canonical: https://codelivly.com/rooms/ntp-and-time-synchronization
Last updated: 2026-09-03

| | |
|---|---|
| Level | Beginner |
| Category | Networking |
| Lessons | 3 |
| Estimated time | 30 min |
| XP | 200 |

Accurate time synchronization is the invisible backbone of enterprise IT and cybersecurity. This beginner-friendly module explores the Network Time Protocol (NTP), explaining how devices maintain synchronized clocks across distributed networks. You will learn the mechanics of NTP strata, the difference between NTP and SNTP, and why precise time is critical for log correlation, Kerberos authentication, and certificate validation. Furthermore, you will discover how attackers exploit misconfigured NTP servers for amplification DDoS attacks and man-in-the-middle time spoofing, and how to implement defensive controls like access control lists (ACLs) and NTP authentication to secure your infrastructure.

## Lessons

1. What Is NTP and Why Does It Matter (30 min)
2. NTP Stratum Hierarchy (30 min)
3. Guided Lab: Configuring NTP Across a Network (30 min)

## Related

- [Learning path: Network Services Administration](https://codelivly.com/learning-paths/network-services-administration)
- [All rooms](https://codelivly.com/rooms)