Domain Name System (DNS)
The phonebook of the internet is the Domain Name System (DNS). Domain names like www.espn .com are used by people to access information online. Through Internet Protocol (IP) addresses, web browsers may communicate. In order for browser to load Internet resources, DNS converts domain name IP addresses. Each Internet-connected device has a specific IP address that other computers can use to find the device. DNS servers take the place of the necessity for people to remember IP addresses like 192.168.1.1 (in IPv4) or more complicated modern alphanumeric IP addresses like 2400:cb00:2048:1::c629:d7a2 (in IPv6).
Types of DNS
⦁ Recursive DNS Server.
⦁ Authoritative DNS Server.
