Domain Name System Paper Presentation & Seminar

Although programs theoretically could refer to hosts, mailboxs and other resources by their network (e.g., IP) addresses, these addresses are hard for people to remember. Also, sending e-mail to [email protected] means that if Tana’s ISP or organization moves the mail server to a different machine with a different IP address, her e-mail address has to change.Consequently, ASCII names were introduced to decouple machine name from machine addresses. In this way, Tana’s address might be something like that [email protected], the network itself understands only numerical address-es, so some mechanism is required to convert the ASCII strings to network addresses. In the following sections we will study how this mapping is accomplished in the internet

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