Keywords: sag

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# Major services in a UNIX system

This section describes some of the more important UNIX services, but without much detail. They are described more thoroughly in later chapters.

- `init`
- Logins from terminals
- Syslog
- Periodic command execution: `cron` and `at`
- Graphical user interface
- Networking
- Network logins
- Network file systems
- Mail
- Printing