NTP (Network Time Protocol) is a hierarchical time synchronization protocol that maintains accurate time across network devices by synchronizing with authoritative time sources and distributing precise time information throughout the network infrastructure. It operates using a stratum-based system where lower stratum numbers indicate higher accuracy, supporting both server and peer relationships with authentication mechanisms to ensure time source integrity. NTP is critical for network operations including log correlation, certificate validation, debugging, security event analysis, and distributed system coordination, providing microsecond-level accuracy essential for modern network management and compliance requirements.
