Why Your NTP Setup Is Probably Drifting

Episode 11 of Linux Server Admin tackles a silent server killer: clock drift. Lucas and Luna explain why even a 50-millisecond offset can break database replication, certificate validation, and distributed consensus. They walk through a real example of a PostgreSQL cluster that failed silently because chrony wasn't configured to poll multiple upstream servers. They compare ntpd vs chronyd vs systemd-timesyncd, show how to check drift with chronyc tracking, and explain why you should never use a single NTP source. A concrete guide for sysadmins who want production-grade time sync.

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