Used early in the beginning of a substitute address. A database that stores the names and IP addresses corresponding to a single database. This database is maintained by the Network Information Center, Institute of Stanford (Stanford Research Institute's Network Information Center, or SRI-NIC) networks to use, the database must use the protocol file transfer or FTP (FTP. : File Transfer Protocol) to the list of names and addresses to use. Database are updated constantly so that each network to transfer data. Model, as this is not a problem in practice early because of limited network and computing in government agencies and educational institutions. However, when the number of networks and computers grew more and more. Transfer process started to find the problems are. A centralized database update is in response to the growth of the computer at a time. The database is very large. Transfer takes time and channel much impact on the other. The database stores the name is the same. Cause handling problems when people ask the same name. This is why it has developed a new system update is available. System to convert a transition to an automated system that uses distributed databases. A protocol for connecting to the database and update automatically. A hierarchical naming structure to prevent duplicate names. Such a system is subject to the terms of the protocol, DNS (DNS: Domain Name System), also called Domain Name System.
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