This article will show you easy-to-follow steps on an approach to use and set up an Add-on domain. An Add-on domain is a separate domain from the main account using space accessible. Giving you multiple accounts in the same space. This article will assume that you are signed into your cPanel. If you are having a tough time doing that, please see the article named "How to Login to cPanel".
Scroll down to the Domains section and click on the Addon Domains link. This takes you to the Add-on screen. In the first box key in the new domain name. In the following box, the one named Subdomain/FTP Username enter the directory name in your main account where this new domain will be pointing. Type in a password, and afterwards re-enter it. Click the Add Domain option.
This leads you to the verification screen which will confirm that your new add-on domain has been made.
For example: your domain is mydomain.com, and you make an add-on called sample123.com. The web site files should be uploaded to the mydomain.com/sample123 directory.
An FTP Account has been made for this add-on domain. Click the Go Back link. Click the Home Icon in the upper left hand corner. Scroll down. Click the FTP Accounts Icon in the Files section. Scroll down the page, and in the Account Management section you will see your new add-on domain listed.
To take off an add-on domain, in the modify Addon Domain section look for the Remove button. Click the button, and it will take you to a confirmation screen. Click Yes, and the domain has been removed, also the FTP account created for it. Simply click HOME and return to the main page of your cPanel.
This is the last part of this article. You now know how you can setup and remove add-on domains in your account.
You can at this point exit cPanel by closing your browser, or by using the Logout button in the upper right corner. Always remember, if you are using a public computer, ALWAYS Logout of cPanel before shutting due to security reasons.