What does DNS mean? What is the function of DNS

This article mainly introduces dns What does that mean? dns What is the function? Introduce relevant information , Friends in need can refer to the detailed content of this article DNS It is a common network vocabulary in current work and life , Many users only hear their names , I don't know what it means , This leads to their poor use DNS Related functions , Here is the most detailed DNS Concept and function introduction , So that everyone can better understand and use DNS.
dns What does it mean and dns What is the function of introduction
1、dns It's a domain name system , It's the world wide web as a domain name and IP A distributed database with address mapping ,
It can make it easier for users to access the Internet , Instead of remembering what can be read directly by the machine IP Number string .

2、 significance ： By hostname , Finally, we get the corresponding IP The process of address is called domain name resolution （ Or hostname resolution ）.
In resolving domain names , You can first use the static domain name resolution method , If static domain name resolution fails , Then we use the method of dynamic domain name resolution ,
A domain name is an identity on the Internet , Is a unique identity resource that cannot be repeated ; The globalization of Internet makes domain name a national strategic resource to mark a country's sovereignty .
3、 The resource records of a region are updated to a single primary name server manually or automatically （ Call the main DNS The server ） On ,
Lord DNS A server can be an authoritative name server for one or more regions .

4、 stay Windows Under the platform , Use command line tools , Input nslookup,
The returned results include the corresponding domain name IP Address （A Record ）、 Alias （CNAME Record ） etc. .
In addition to the above methods , You can also pass some DNS Query sites such as foreign and domestic Search for domain name DNS Information .

That's all dns What does that mean? dns What is the function? Details of the introduction , More about dns Please pay attention to the information of function introduction OPEN Other related articles about developing home ！