Active in the early seventies
.In the beginning of the use of the name for addresses. The database, which keep the name machine with a single IP address database correspondence This database maintained by the network information center, Stanford Research Institute (Stanford Research Institute 's Network Information.SRI-NIC) or any network to use the database must use the file transfer protocol file transfer protocol (or FTP:File Transfer Protocol) to the list of addresses and radial use. The central database to improve the new time to each network transfer the latest information to use.But when the number of computer network and increasing. Transfer process began to experience problems including
.
improve centralized database doesn't respond to the increasing rate of the computer can keep up appearance
databases is more large. Transfer time and channel could affect other applications
.Original database store name are the same level. Cause problems when applicant named too
.Therefore, the concept of improving system provides a computer name. The translation system named towards automation using distributed database.The naming pattern has a hierarchical structure to prevent the name redundant. Such a system is under the terms of the protocol. (DNS: Long BranchDomain Name System) or is called the system domain.
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