The Domain Name System (DNS)
is a naming system for computers or resources connected to the Internet, or a
private network. Its most important function is to translate domain names into
the numerical identifier (usually and IP address) of the computer.
The
DNS is a complex network. If any part of this network, between your computer and
the server you are attempting connect to has problems, you will receive a DNS
error. The problem can be with your computer, your Internet Service Provider
(ISP), the server you are trying to connect to, or any DNS server in between,
making the cause of DNS errors sometimes difficult to find.