Domain Name System (DNS) Basics
Roughly, Domain Name System or DNS is like a phonebook for the Internet.
Domain Name System (DNS) converts human readable domain name into IP addresses
When a user on a computer types any URL, the Operating systems first checks its own memory to see if it already has an IP address for that URL.
If the cache memory on that computer does not have the IP, then it sends a request to DNS Server asking , Do you have an IP address for that URL?
DNS server looks into its database (Phonebook) and send the IP address of the requested URL.
User after receiving the IP can no communicate with the commuter where actually the URL resides.
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