Linux Foundations - Service Recovery

Learners manage Linux services with systemd and systemctl. They inspect service status and states, list services by state, and practice starting, stopping, restarting, enabling, and disabling services (using nginx), learning the difference between running now and enabled at boot. In the final module they diagnose and recover a deliberately broken service, reading logs with journalctl, fixing the unit file's ExecStart path, reloading the daemon, and confirming the service returns to a healthy running state.

• Inspect Linux services with systemctl and systemd, reading status output and active states, and listing services by state (including failed).
• Control services by starting, stopping, restarting, enabling, and disabling them, and explain the difference between a service running now and one enabled at boot.
• Diagnose and recover a failed service using a repeatable workflow: read logs with journalctl, inspect and correct the unit file, reload the systemd daemon, and confirm the service returns to a healthy running state.

1 x Ubuntu 22.04 VM