One of the biggest changes in Joomla! 1.6 is the introduction of a completely new system to manage user permissions. The previous version of Joomla! already featured a basic system of Access Control Levels (ACL), as user permissions management is usually called. In Joomla! 1.6, you've got much more control over what users can see and do on the site. However, the new system can be pretty complex. Let's find out how you can put Joomla!'s new ACL system to work.
In this chapter, you'll learn about:
The default set of user groups and permissions in Joomla! 1.6
Action Permissions: what users can do
Viewing Access Levels: what users can see
ACL at work: two practical examples of how you can use ACL