DNS stands for domain name service. It can be thought of as a large, distributed
database, containing all internet domain names and hosts, such as www.mywebsite.com.
The reason for using DNS names instead of IP addresses is simple: meaningful names
are much easier to deal with by human beings than numbers, such 22.214.171.124 If
you are using a Dialin or DSL connection to your provider, the DNS name shown is
probably a somewhat cryptic name, which is used by your provider internally to organize
and manage the numerous dialin ports.