Computers on the Internet do not have names, data is transmitted using IP addresses that are difficult to remember (numerical addresses such as 184.108.40.206). The Domain Name System (DNS) is designed to simplify working with sites. It converts the domain name that the user enters in the browser into an IP address to access the server.
What is a DNS server?
A DNS server is a server that runs special software. Initially, the purpose of this hardware and software complex was to store a table of DNS records of the form: "domain name" - "IP address", called "A" type records, for example: IP address of the domain of nic Server.com 220.127.116.11. Click here for more explanation https://www.tipsyoumustknow.com/ . Now in the system, DNS also contains other resource DNS records: "MX", "TXT", "CNAME", etc. These are necessary for the domain to work. They are needed for the domain to function as a website address, email address and many other services.
What are resource DNS records?
Resource records (DNS records of a domain) are records in the domain name system about the correspondence between the name and service information about the server to which that name should point. Each resource record is required for a specific service to run. For example, the MX resource record contains data for the proper operation of email on the domain.
Why register DNS servers for a domain?
Without placing domain information on DNS servers, site or mail work on it is impossible. To ensure fault tolerance, DNS servers are prescribed in pairs the failure of one server will not affect the availability of the site.
What is Dynamic DNS used for?
Dynamic DNS is a technology that allows you to assign a permanent name to a device with a changing IP address, providing domain name access to network devices - computers, routers, webcams, etc. Dynamic DNS is supported on all DNS hosting service plans.