Systemd by Example: What Actually Happens When You Type systemctl restart nginx

Understanding the Sequence

Systemd is the heartbeat of most modern Linux systems.
When you run:

sudo systemctl restart nginx

you trigger a full chain of actions – not a single binary reload.
Systemd reads unit definitions, resolves dependencies, checks targets, and updates logs.
Knowing what happens gives you clarity when a service misbehaves.

You don’t need to fight systemd. You just need to understand its rhythm.

Continue reading “Systemd by Example: What Actually Happens When You Type systemctl restart nginx”