DNS (Domain Name System) is a decentralized system that is used to translate domain names into IP addresses. IP addresses are a series of numbers that are used to identify devices on the internet, while domain names are more user-friendly strings of characters that are easier for people to remember.
DNS works by linking domain names to the corresponding IP addresses, allowing users to access websites by typing the domain name into their web browser rather than the IP address. When a user types a domain name into their browser, the request is sent to a DNS server, which looks up the corresponding IP address and sends it back to the user's browser. The browser then uses the IP address to connect to the website and display it to the user.
In this way, DNS serves as a kind of "phone book" for the internet, allowing users to access websites by using easy-to-remember domain names rather than difficult-to-remember IP addresses.
Domain names and DNS are related in that domain names are used to identify websites on the internet, and DNS is used to translate those domain names into the corresponding IP addresses so that users can access the websites. Without DNS, users would have to remember the IP addresses of the websites they want to visit, which would be much more difficult and less user-friendly.