Domain Name Message Format. For IPv4 the domain is in-addrarpa. As with physical addresses the exact layout can vary.
And header information that controls the entire process. A domain name is an identification string that defines a realm of administrative autonomy authority or control within the Internet. The response message consisits of a header question records answer records authoritative records and additional records.
Domain names including the names of domains hosted zones and records consist of a series of labels separated by dots.
A common message format is used for DNS queries and responses. In general a domain name identifies a network domain or it represents an Internet Protocol resource such as a personal computer used to access the Internet a server computer hosting a website or the web site itself or any other service communicated. Part 2 analyses the DNS format of a response that is when the DNS server is responding to our inital DNS query. Query and Response Messages.