The Domain Name System (DNS) is a hierarchical distributed database that provides a uniform resource locator (URL) for computers on the Internet. DNS allows a user’s computer to resolve a hostname to an IP address. The Domain Name System is critical for the proper functioning of the Internet. Without DNS, users would have to type in long IP addresses, or use complex network names such as www.
yahoo.com.
DNS is run by the World Wide Web Consortium (W3C) and is a key part of the Domain Name System Security Extensions (DNSSEC) specification. DNSSEC is a set of extensions to the Domain Name System that help to protect against DNS spoofing, DNS cache poisoning, and DNS amplification attacks.
The Domain Name System is an essential part of the Internet infrastructure and plays an important role in the security of the Internet.
