are a neat feature included on every hosting account.
Sub-domains are 3rd level domain names. They are in the format: subdomain.yoursite.com.
Sub-domains are useful for seperating parts of your site
or hosting seperate websites on your domain name. To create
a sub-domain, enter CPanel.
Then click on the button shown to the left, under which it
sub-domain page looks similar to the image on the right.
It lists the current sub-domains and then below that there
is a field where you can enter a new sub-domain and create
edit. To create a new sub-domain, enter its name in the text
box and click add. The system will then create the sub-domain
and create a sub directory with the same name as the sub-domain
in public_html where you can upload pages to the sub-domain.
It will also create a cgi-bin directory in that folder where
you can put your cgi scripts.
To delete a sub-domain, simply
select it from the drop down box next to the Delete button,
to delete it.
An extra feature of subdomains
is you can create a FTP account to allow FTP access to it
without giving out your main FTP password for the rest of