You might want your sub domain to redirect to another page. To accomplish this, please do the following:
- Login to your cPanel.
- Click the Subdomains icon.
- Make sure you have already added a subdomain to your account.
- At the bottom, click the Manage Redirection link to the left of the subdomain which you would like to redirect.
- In the box, type the URL (http://domain.com/optional-stuff) for which you would like a user to be redirected to if they go to the subdomain.
- Click the Save button.
You have now successfully created a redirect for a subdomain. When you visit the subdomain, you will be redirected to the desired page.