Systemd Deep-Dive: A Complete, Easy to Understand Guide for Everyone
Systemd – it’s the most popular init system when it comes to Linux, and everyone loves it. Honest. But whether or not you love Systemd, you’re going to love this video because it will teach you all the core basics of Systemd. This coverage will include starting, stopping, restarting units, location priority in regard to unit file locations, editing service units and more! (And yes, you WILL learn Systemd with this video, or your money back!!!)
Note: Be sure to check the time code section to see what’s covered. One or more follow-up videos will be made at some point in the future to cover anything I ran out of time for. Enjoy!
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— Individual Sections —
00:00 – Intro
01:10 – How this video will be structured
02:11 – Some basic knowledge on init systems, etc
04:46 – What are Units in terms of Systemd?
06:02 – Installing Apache (for use as an example service unit)
07:51 – Checking the status of a Systemd Unit
09:34 – Starting a Systemd Unit
11:02 – How to stop a Unit with Systemd
11:47 – Restarting a Unit
12:38 – Enabling/Disabling Systemd Units
15:58 – Where are Systemd’s Unit files stored?
20:40 – Systemd unit file directory priority/preference
23:31 – Taking a closer look at a Systemd Service File
30:22 – How “reload” differs from “restart” in Systemd Service Units
31:37 – Service File explanation (continued)
33:02 – Editing and Overriding Systemd Unit Files
42:01 – Reloading Systemd with systemd daemon-reload (and why you should)
43:06 – Some tips on creating your own unit files
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