Domain Name System

A widely used and recognized protocol is DNS. For translating host names and domain names into IP addresses, it is employed. The name www.networkeducative.com gets transformed into an IP address when you write it because of a number of requests that your PC sends to the DNS server. The articles that follow analyze this DNS Query procedure in great detail, along with other topics.

Fig 1: Domain Name System

To reduce confusion and facilitate learning, the amount of information pertaining to the DNS protocol has been divided into smaller sections.

Section 1: The DNS Protocol. how the DNS protocol came to be and its causes. You can observe the layers on which DNS operates by comparing DNS with the OSI Reference model on the page, which also includes some historical information. You may learn more about the structure of Internet domains by reading this analysis of the Internet DNS hierarchy.

Section 2: The DNS Resolution Process. what actually takes place when a host makes a DNS resolution request. Detailed examination of the entire resolution procedure using a real-world example. Recognize the function of Name Servers in the DNS system.

Section 3: The DNS Query Message Format. The DNS packet format is shown to you in this section and the one that follows. Learn the creation and formatting of DNS queries. As you are guided through a thorough investigation of the packet structure utilizing the stunning 3D graphics, you can see, learn, and comprehend the many fields contained within the packets.

Section 4: The DNS Response Message Format. The part above, which dealt with the received DNS response, is continued here. You'll discover how to create, format, and send the response packet to the resolver. Again, using the beautiful 3D representations, you are guided through a thorough investigation of the packet structure.