What is DNS?
A hierarchical distributed naming system that translates domain names to IP addresses.
Detailed Explanation
DNS acts as the internet's phone book, converting human-readable domain names (like example.com) into IP addresses that computers use to communicate. It operates in a hierarchical structure from root servers down through top-level domains (.com, .org) to authoritative nameservers for specific domains. DNS uses caching to improve performance and reduce lookup times.
Examples
- •google.com resolves to 142.250.185.46
- •Typing a URL in your browser triggers a DNS lookup
- •Email servers use MX records from DNS to route messages