You can change your domain’s DNS settings for things like A, CNAME and MX records should you want to use your domain with third party services as well as with your account with us.
The Domain Name System, or DNS, is the means by which computers connected to the Internet get information about each other. The individual pieces of information are known as records; each record is of a certain type. Computers look up records for a domain by asking the name server for the domain about the records relevant to that domain.
IP addresses are the numbers which identify computers to each other.