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When you type something in here, it will make a new folder that acts as public_html for the newly created addon domain.
It also creates a new ftp account for the site. The main difference is that your username is now in the format of addonuser@maindomain.com and then the password you typed in for the addon domain.
For example, if you made an addon domain called: mynewdomain.com and in the second box you made a new Username/directory/subdomain Name called: mynew
. with the password: somepass, then you would have a separate FTP account that only allows access to the "mynew" folder. This is nice if you want to restrict access to your primary site.
You would then login to the FTP site as:
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