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To allow Apache to properly handle the SEF URLs, you need to set up a custom Joomla .htaccess file in the root directory. For the Apache server, the Joomla installation includes a sample .htaccess file that has the proper configuration settings for the main directory to allow Joomla to handle the URL conversion.
The configuration file, named htaccess.txt, will be located at the root directory of your Joomla site in a default installation file. To allow the Joomla execution of mod_rewrite, you will need to rename the file to .htaccess. To enable the htaccess.txt file included with Joomla, rename it to .htaccess (or ht.acl on Windows).
Restart the Apache server so that the file will be correctly addressed.
