Linux Ops: systemd¶
systemd is the init system and service manager on virtually all modern Linux distributions. Understanding unit files, dependency ordering, journal logging, and timer-based scheduling is essential for managing services, debugging boot failures, and writing reliable service definitions.
Contents¶
Start with the primer for core concepts, then explore pitfalls and day-to-day operations.
| # | File | What it covers |
|---|---|---|
| 1 | Primer | Unit types, dependency ordering, target isolation, and the systemd boot process |
| 2 | Anti-Primer | Myths about systemd — what it replaces, what it does not, and common misunderstandings |
| 3 | Footguns & Pitfalls | Restart loops, masked units, journal size explosions, and ordering vs dependency traps |
| 4 | Street Ops | systemctl, journalctl, systemd-analyze — the commands for daily service management |
| 5 | Trivia & Interesting Facts | The history and controversy behind systemd's design decisions |
| 6 | Thinking Out Loud | Exploratory notes and open questions about systemd patterns |