What is DNS
What is DNS:– Domain name system (DNS) is a sequential naming system for computers, services, or resources related to an Internet or a private network. It collects various information with the given domain name given to the participant. The most important thing is that it transforms meaningful domain names for humans into numerical (binary) identities associated with networking devices for the purpose of identifying and addressing these devices all over the world. The frequently used proverb about the domain name system is that it translates as a “phone book” for the Internet as an IP address of a homogeneous computer hostname. For example, www.example.com translates to 220.127.116.115.
What Is DNS Server
The Domain Name System makes it possible for a group of Internet users to specify a domain name in a meaningful way even if the user is at any location. Due to this, the information of hyperlinks and internet links of the World Wide Web (WWW) remains constant and neutral, whether the current internet routing system changes or users use mobile devices.
Remembering Internet domain names is easier than remembering IP addresses like 18.104.22.168 (IPv4) or 2331: eb8: 2f40:: 555: de8: 3456: 3f8 (IPv6). People take advantage of this by creating meaningful URLs and e-mail addresses regardless of how the machine (server) will find them.
The domain name system delivers the responsibility of determining the name of the domain and finding the IP address of those names by specifying the official name server. The official name servers are liable to their specific domains and in turn, they can set other official name servers for their sub-domains. This mechanism has made it deserving to distribute the DNS, to bear the error and to continually discourage the need for a central register to avoid advice and updates.
Usually, the domain name system stores other information such as a list of mail servers that accept email for the given internet domain. Due to providing a world-wide distributed key-word-based rescheduling system, the domain name system is an essential component of the convenience of the Internet. International identities such as RFID tags, UPC codes, email addresses and host names, and different identifiers of different types can potentially use DNS.
Domain name system also defines the technical basis of the functionality of this database service Does. For this purpose, it defines a detailed description of the data structures and communication exchange used in the DNS as part of the Internet Protocol Suite (TCP / IP) protocol. The DNS protocol was developed and defined in the early 1980s and made public by the Internet Engineering Task Force. (See further history.)