The Domain Name System (DNS) is the Internet telephone directory that translates human-readable domain names into machine-readable IP addresses. DNS servers make it possible to find the unique IP address of every Internet-enabled device.
Services such as Amazon Route 53 play a key role in this conversion. Without DNS, internet communication would be impaired. DNS resolution is performed by recursive DNS resolvers and authoritative DNS servers. Recursive resolvers trawl the DNS hierarchy to find IP addresses, while authoritative servers provide the final answer. DNS security and privacy are prone to problems because DNS queries and responses contain plain text that can be intercepted and manipulated. Privacy and security in DNS therefore pose significant challenges.
In summary, DNS is crucial for Internet communication, plays a central role in converting domain names into IP addresses and forms a basis for the smooth functioning of the Internet.