Linux for Beginners #10 — Logs | journalctl, /var/log, debugging workflow

Published: 06 May 2026
on channel: Dargslan

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In this video, we dive deep into professional IT workflows to help you learn faster and code smarter. Whether you're a DevOps engineer, a SysAdmin, or a curious developer, our "No Filler" approach ensures you get the facts without the fluff.

Logs are the system's voice. Learn to read journalctl efficiently, navigate /var/log, and build a repeatable debugging workflow — so a "frozen server" stops being a panic moment.

📚 IN THIS PART YOU'LL LEARN

✓ journalctl — modern systemd logs
✓ journalctl -u, -f, --since filters
✓ /var/log — traditional log files
✓ Logrotate — why you don't have to clean manually
✓ A debugging workflow: symptom → log → cause → fix
✓ tail -f and follow mode

⏱️ TIMESTAMPS

00:00 Intro
01:30 journalctl — basics
02:00 -u, -f, --since filters
03:00 /var/log — the traditional spot
04:30 logrotate — automatic maintenance
05:00 Debugging workflow in practice
06:00 tail -f and follow-mode tricks

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🎓 ABOUT THE LINUX FOR BEGINNERS SERIES

This 24-part series assumes zero prior knowledge and takes you all the way to running a hardened, public-facing VPS. Every part stands alone, but the full series gives you a complete mental model of how Linux really works.

📂 Full playlist:

📩 Downloadable PPTX slide deck + cheat sheet for this part:
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👍 Like — that's the strongest signal to YouTube
🔔 Subscribe + bell — new part every week
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📤 Share — with anyone learning Linux

#DevOps #ITMastery #Dargslan #Linux #CloudEngineering #nofillertech #linux #journalctl #logs #debugging #troubleshooting

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