Domain Name System (DNS) maps domain names to IP addresses from "summary" of Data Communications and Networking by Behrouz A. Forouzan
The Domain Name System (DNS) is a crucial component of the Internet that plays a key role in translating human-readable domain names into machine-readable IP addresses. This translation is essential for enabling communication between devices on a network. When a user enters a domain name into a web browser, the DNS is responsible for mapping that domain name to the corresponding IP address of the server hosting the website. This process allows the user's device to establish a connection with the server and retrieve the desired web content. The DNS operates through a distributed database system that stores information about domain names and their associated IP addresses. This database is distributed across multiple servers known as DNS servers, which work together to efficientl...
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