Learn journalctl in 7 Minutes — Become the Linux Troubleshooting Hero
Unlock the power of journalctl and take control of your Linux troubleshooting like a pro! In this video, I’ll walk you through how to use journalctl to view logs in real-time, isolate service issues, filter by time or user, and even clean up old logs to save space. Whether you're managing a personal server or troubleshooting a production system, this is the tool you need to master.
📌 What You’ll Learn:
How to view and follow system logs in real-time
How to filter logs by service, time, or user
Real-world examples of debugging issues with SSH and Apache
💡 Perfect for Linux beginners, sysadmins, DevOps engineers, and anyone tired of guessing what's going wrong.
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00:00 Intro
00:52 The scenario
01:28 Man page
01:35 journalctl
01:56 journalctl -f
02:31 journalctl -u
02:59 Combine arguments
03:32 journalctl --since
04:00 Pro Tip!
04:36 journalctl -r
04:57 Outro