What is DNS and how does it work?

Question

Accepted Answer

DNS stands for Domain Name System, which translates domain names to IP addresses.

DNS is like a phone book for the internet, translating human-readable domain names (like google.com) to IP addresses (like 172.217.3.206).
DNS works by sending queries to a series of servers, starting with the local DNS resolver and then moving up to authoritative DNS servers.
DNS uses a hierarchical system with multiple levels of servers, including root servers, top-level domain servers, and authoritative name servers.
DNS also involves caching to improve performance and reduce the load on servers.
DNS records include types like A records (for IPv4 addresses), AAAA records (for IPv6 addresses), MX records (for mail servers), and more.

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