Domain Name System: The important parts
What is a domain name? According to RFC 1034, which lays out the original DNS specification, the domain name of a node is a list of labels on the path from the node to the root of the tree. Okay, let's try to phrase it in a more comprehensible way. A domain name describes a node on the tree by tracing the node all the way back to the root. Every label along that path becomes a part of the domain name. The takeaway here is that we can describe a node by its domain name. For the sake of brevity, in this article, a domain name is also referred to as the "domain" from now onwards. Now the root of the tree is represented by a dot. For example, iamshouvikmitra.blogspot.com is represented as iamshouvikmitra.blogspot.com. [.] |_ [com] |_ [blogspot] |_ [iamshouvikmitra] Therefore, the domain for "com" is "com.", the domain from "blogspot" is "blogspot.com.", and fi...