i understand that the latest version of joomla allows you to do that and you will find the option to do so in the admin/settings section (going from memory here as the joomla site i had set up is now offline)
The information on Computing.Net is the opinions of its users. Such
opinions may not be accurate and they are to be used at your own risk.
Computing.Net cannot verify the validity of the statements made on this
site. Computing.Net and Purch hereby disclaim all responsibility
and liability for the content of Computing.Net and its accuracy.