What is a DNS server

DNS is a server that converts domain names and corresponding IP addresses. DNS stores a table of domain names and corresponding IP addresses to resolve the domain names of messages.

#The operating environment of this article: Windows 7 system, Dell G3 computer.

DNS (Domain Name System) is an important technology supporting the Internet. Without this, you cannot use the website or email. First of all, generally we use the usual alphabetical domain names, emails (IP addresses) that access the web and server devices. DNS is responsible for storing services and providing information for converting them. DNS servers are the addresses (domain names) written with computers on the web. Or act as a converter between mail server IP addresses.

What is a DNS root server?

The DNS cache server is the server that is first queried. The DNS cache server is between and represents the DNS root server.

What is a DNS cache server?

Cache is a mechanism for temporarily storing data, and DNS cache is a state of temporarily storing IP address information corresponding to a domain name.

How the DNS server works

First the PC accesses the DNS cache server through the domain name, and the DNS faces the DNS root coordinator check, and then the DNS root server notifies through the management information The DNS cache server of the DNS server queries the DNS server for the management information of the IP address corresponding to the domain name. The DNS server returns the DNS address to the DNS cache server and back to the PC, and the web page will be displayed on the PC.

[Recommended reading:What does DNS cache poisoning mean】

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