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Task 1 of 6
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SERVICE CONTROL
Scenario
The web team pushed a bad config and nginx is down. Customers are seeing 502 errors. Use systemctl to bring services back online and prevent this from happening again.
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Solution Cheat Sheet
Task 1 — Check service status
systemctl status nginx
Task 2 — Start service
sudo systemctl start nginx
Task 3 — Verify running
systemctl status nginx
Task 4 — Enable on boot
sudo systemctl enable nginx
Task 5 — Restart SSH daemon
sudo systemctl restart sshd
Task 6 — List active services
systemctl list-units --type=service
