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In this section of the course,

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we're going to cover two exam objectives

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that are focused on the concepts

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around permissions and ownership.

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These are covered in two domains,

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domain two, security,

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and domain four, troubleshooting.

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We're going to start out by covering objective 2.5.

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This state that given a scenario,

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you must apply to appropriate access controls.

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Then we're going to move into objective 4.4

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that states, given a scenario,

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you must be able to analyze and troubleshoot user access

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and file permissions.

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That's right.

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This section is all about permissions and ownership,

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and we're going to start

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by focusing on file and directory permissions

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and the way we work with our files and directory ownership

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inside of Linux.

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Next, we'll talk about special permissions and attributes

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within the Linux operating system

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and how those are going to be set and modified.

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Finally, we're going to discus what to do

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when you face permission issues in your system.

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As always, we're going to continue

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to interlace our hands-on demonstrations

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throughout each of these concepts

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in our CentOS system

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so you can see all of this in real time.

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So let's jump into our lessons on permissions and ownership.