what is dns and how it's work

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DNS stands for Domain Name System, it translates domain names to IP addresses to locate resources on the internet.

DNS is like a phone book for the internet, translating domain names to IP addresses.
It helps users access websites by translating human-readable domain names (e.g. www.google.com) to machine-readable IP addresses (e.g. 172.217.3.206).
DNS servers store records like A (address) records, CNAME (canonical name) records, MX (mail exchange) records, etc.
DNS works through a hierarchical system of servers, with the root servers at the top, followed by top-level domain servers, authoritative name servers, and caching resolvers.
DNS queries are sent by clients to DNS resolvers, which then recursively query the necessary servers to find the IP address associated with the domain name.

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