Linux › Section G · System configuration › Topic G.4
getty, login, and setting the time
Two small jobs happen on every machine before anyone does real work: a text terminal turns into a login prompt, and the system clock is kept right. Both are simple once you see which program owns each step.
In this topic
- From terminal to shell: getty and login
- How systemd starts the getty
- Customising what users see
- How the kernel keeps time
- Worked example: converting epoch seconds
- Time zones and timedatectl
- Worked example: one meeting, four zones
- Keeping the clock right: NTP
- Common mistakes to avoid
- Key takeaways
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