Clocks that agree with each other
For correlating two logs, consistent beats accurate — and timedatectl alone names neither the server nor the offset.
18 minutesTechnical content last reviewed on 21 Sept 2026
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What this lesson builds
- Configuring the network so it survives a reboot
- Saying what an output proves, and what it leaves open
End of the course
Networking: how your server is reached
Addresses, ports and connections: name the failing layer instead of declaring "the network is down".
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