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Abstract



Along with the enterprise informationization's popularization and the development, computer's application are getting more and more widespread in various Enterprises and institutions. Enhances enterprise's competitive power through the informationization construction to become the majority small and medium-sized enterprises the mutual recognitions. But in the existing facility's foundation, establishes the enterprise internal local area network and connects the Internet, is precisely realizes the enterprise informationization management premise and the basic condition.

The informationization can on the effective shoulder be redundant the work and can strengthen the cooperation, thus the enhancement working efficiency, increases the performance of enterprises. In the existing small and medium-sized enterprise, has the information foundation to be weak generally, technical personnel deficient and so on characteristics, enables them effectively own traditional service and the information system very good union, cannot honor the superiority which graciousness display informationization brings.

Usually enterprise's work network is mainly for the convenience enterprise interior issue information and the exchange, realizes enterprise interior resources sharing, achieves reduces the enterprise operation cost, to raise the enterprise operation efficiency the goal.

Nowadays's human society already entered the network and the information society, along with the Internet rapidly expand and the widespread application, more and more people carries on the operational ties, the commercial service and the communication with the network. Internet is one world-wide world each corner complex huge data net which is composed together by the numerous small local area network. It safe, the steady operation depends on various network server provides such as the Web homepage browsing, the FTP file transfer, the E-MAIL receiving and dispatching, the NEWS discussion, the Exchange online discussion to serve, network services and so on domain name analysis, dynamic allocation IP address.



Key words: LAN, Internet, computer networks, network protocols, server























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