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on Call It’s Friday,which means it’s time for another tale from the tech trenches! Today’s story comes from “Kim” (name changed),who found himself wrestling with time itself in an air-gapped lab.
Kim’s mission began when an application server drifted more than five minutes out of sync with the lab’s domain controller, which also served as the Network Time Protocol (NTP) server.
Further investigation revealed that all servers were out of sync, a problem known to staff for over a year but never addressed.
Management then mandated that application timestamps be within one minute of actual time.
Kim re-engaged, verifying the controller’s NTP service configuration. Though, manual sync attempts failed, with the NTP daemon reporting an inability to locate any servers.
This was perplexing, as the NTP server was broadcasting time, and other lab machines were successfully receiving it.
Then,Kim recalled the “panic threshold” of the NTP daemon.
NTP synchronizes clocks across a network, crucial for consistent log files and incident investigations. Divergent timestamps across machines can create havoc when troubleshooting.
The panic threshold prevents an NTP client from syncing if the time difference between client and server exceeds a set limit.
In Kim’s case, the time discrepancy far exceeded this threshold, causing the NTP daemon to panic and refuse synchronization.
The solution was straightforward: increasing the panic threshold allowed the daemon to proceed without panicking.
Kim implemented the change, proclaiming himself an “Air-gapped time cop!”
Ever bent time and space to fix a tech problem? Share your story!
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