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- Welcome to lesson three.

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In this lesson, we'll explore

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some of the advanced Systemd features.

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I'll start talking about
Systemd units in general,

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and after that you'll
learn about Systemd sockets

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and timers.

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Next, I'll introduce the
topics of Systemd Cgroups,

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something you can use to limit
the availability of resources

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to different services that
are started through Systemd.

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After this, you'll learn how to manage

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Systemd unit dependencies.

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The last lesson in this module
covers Systemd self-healing.

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A useful feature that
ensures that after a failure

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a unit can automatically be started again.

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This lesson ends with the lab,

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which helps you practice
the topics just learned.