The problem was that there was not a single united network. Authentication and validation of emails and different servicesīefore the Internet, there were different networks like ARPANET, SATNET, and many packet radio ones.There are 50+ types of DNS records with different functionality. It manages to translate all the inquiries into IP addresses, and like this, it can identify different devices that are connected to the network.Īpart from translating hostnames to IP addresses ( A and AAAA DNS records), DNS also has many different functions like defining port in use, connecting services to domains, authentication of emails, and many more. Just like the phone book on your mobile phone, you need to find Mike, so you write “Mike”, and you don’t need to remember his actual number, great isn’t it?ĭNS is an essential part of the Internet. We easily write the domain name and the DNS has the job to find the IP of the domain we wrote. All-day, every day! Domain Name System – DNSĭNS or a Domain Name System is an amazing technology. You can see DNS as a hierarchy system of domains/hostnames and IP addresses. It helps us open internet addresses without a hustle. We use DNS to access sites, send and receive emails when we use applications. It is the key ingredient that makes domain resolving possible.
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