Glossary

These are terms that you will see people use when talking about Joomla!, whether in this book, on the Joomla! forums, at a JUG meeting, or during a Joomla! Day. This glossary should help you get a better understanding of what people mean when they talk about Joomla!

3PD

An acronym for “third-party developer,” this is someone who makes extensions for Joomla!

404 error

A 404 error is what happens when a user attempts to navigate to a Web page that does not exist. There are a number of situations where site administrators can unintentionally cause 404 errors. For example, moving a page without setting up a redirect will cause this. Another common error is creating a public menu link to items that are restricted to logged-in users.

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