Initially What was the motivation to Develop DNS?
The DNS is developed to solve the problems of The Advanced Research Projects Agency Network (ARPANET) and Internet, but why?
Intially the DNS and internet was developed for the sharing files and software for government contractors.
Dipartment of defence dismentle the ARPANET and There is origin of new organization , National Science Foundation, started funding this project. Motivation is the boring ,so Motivation should start the discomfort then we learn new things.
What is DNS and why name resolution exists?
DNS(domain name system) bustle(move) the names into the ip(internet protocol), The internet hall is large and roof of the commands and servers and it's just like routing emails into the proper destination, source to destination , or you can say the candidate to the hr.
Understanding dig . NS and root name servers
Root name servers are the actual dns servers on the internet, total is 13. The dig . NS depicts the total 13 domain name servers on the internet.
Understanding dig com NS and TLD name servers
dig com NS provides the information about the authoritative name servers.
dig tld NS shows the top level domain servers and top level domain specifies the ip address of .com, .org, .net, .io , .ai etc.
dig google.com NS - provides the authoritative Name Server (NS) information.
dig google.com provides the DNS for the default record type.
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