What is DNS
Created Wednesday 05 April 2023
From bing ChatGPT:
The Domain Name System (DNS) acts like a virtual telephone directory for the Internet. When you type in website names into your browser’s address bar, your device uses DNS to look up the unique IP addresses of those websites in order to find them on the internet. Every time you enter a new domain in your browser, your device sends a query to the primary DNS server, which translates it to the IP address you need1. DNS servers translate requests for names into IP addresses, controlling which server an end user will reach when they type a domain name into their web browser. These requests are called queries.
Google Bard
The Domain Name System (DNS) is a hierarchical naming system for computers, services, or any resource connected to the Internet or a private network. It associates various information with domain names assigned to each of the participants. Most prominently, it translates easily memorized domain names to the numerical IP addresses needed for locating computer services and devices with the underlying network protocols. By translating domain names into IP addresses, the Domain Name System serves two principal functions:
It provides a mechanism for associating multiple domain names with the same IP address. This is useful for load balancing, name-based virtual hosting, and other applications.
The Domain Name System is a distributed database. This means that there is no single DNS server that contains all of the information about all of the domain names on the Internet. Instead, the information is stored on a distributed network of DNS servers. When a computer needs to resolve a domain name, it sends a query to a DNS server. The DNS server then looks up the information in its database and returns it to the computer.
The Domain Name System is an essential part of the Internet. It allows users to access websites and other online resources by using easy-to-remember domain names, rather than having to remember the numerical IP addresses of the servers that host these resources.
Backlinks: Networking