Goedemiddag and welcome to lesson 15.
This lesson is about System D, which is also known as the manager of everything.
No worries, we're not going to talk about all that System D can do.
In this lesson we'll focus on service management.
You'll first learn about System D units, after which we'll discuss services and service configuration.
Next you'll learn how to manage dependencies and how to use masks to ensure that services
cannot be started by accident.
At the end of this lesson you'll find a lab as well as the lab solution.