CNAME is the abbreviation for Canonical Name as against the popular thinking that it means a Custom Domain Name.
A CNAME in a way is an alias created as a record in the Domain Name System (DNS) that helps to differentiate services running on the same domain name via these alias records.
For example, the following are some of the common CNAMEs that you will see with most websites.
mail.MyWebsite.com
ftp.MyWebsite.com




