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One of the big new features released originally in Joomla! 1.6,

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which carries into Joomla! 3.0,

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is ACL, or Access Control Lists.

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ACL is all about who can see different content on the Web site,

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as well as who can create and change which content on the Web site.

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You'll here this frequently referred to as permissions.

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You can see permissions popping up in operating systems like Linux, and Windows,

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as well as in software systems in work environments.

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ACL is a very complicated and in depth topic. It's also very much beyond the

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scope of this course, as it's advanced.

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In this course, Joomla! 3.0:

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Essential Training, I am going to focus on the default ACL features with Joomla! 3.0.

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If you would like to learn more about ACL, I encourage you to watch Joomla!

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1.7 and 2.5: Access Control Lists in Depth.

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Now, obviously this course was recorded using a different version of Joomla,

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and the arrangement of things on the screen is somewhat different in terms

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of the administrators, interface, and where you go to find certain pieces of information.

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However, the fundamental way you go through the process to set up ACL has

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not changed in Joomla! 3.

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So the interfaces are different, but the procedures, and the things you click

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on, and the things you configure are really the same between the two versions of Joomla.

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So you should be able to still use this course to set up ACL for your Joomla! 3.0 Web sites.

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There's absolutely nothing wrong with leaving permissions exactly as they are

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set up in the default, which is what we're going to do through this chapter.

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For small Web sites, where you may have one person, or a handful of people

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maintaining the Web site, it's likely you won't even need ACL at all.

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If you're working on a much larger Web site, where you have many contributors, ACL

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may be really helpful. Throughout Joomla,

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you'll see tabs in various configuration screens for permissions.

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This has to do with ACL.

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I recommend you stay away from changing these screens until you have a better

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understanding of what you're doing.

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Remember, just because you can doesn't mean you should. For now, let's

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concentrate on understanding ACL's default configuration in the upcoming videos.