A system administrator is managing a modern Linux server that uses the chrony suite for time synchronization. The administrator needs to check the overall synchronization status, including the stratum, reference ID, and the system clock's current offset from the true time. Which of the following commands will provide this specific summary?
The correct command is chronyc tracking. This command provides a detailed summary of the system's clock performance as maintained by the chronyd daemon. The output includes crucial information like the Reference ID of the synchronization source, the system's stratum level, the last reference time, and the system clock's offset in seconds.
chronyc sources is incorrect because it lists the individual time sources chronyd is using, along with their state and statistics, but it does not provide the main system-wide synchronization summary.
ntpq -p is incorrect because it is the command used to query the older ntpd daemon, not chronyd. It lists the peers (NTP servers) and their status for an ntpd instance.
timedatectl status is incorrect as it provides a higher-level view, showing the current time, the time zone, and whether an NTP service is active. It does not give the detailed offset and stratum information that chronyc tracking provides.
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What is the `stratum` in time synchronization?
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What does `chronyc tracking` specifically display?
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