Based On The Firewall And Intrusion Detection Linkage System Research And Implementation

"Digital City" is a technology system that integrated use of GIS (geographicinformation system), remote sensing, positioning systems, broadband networks,multimedia and virtual simulation, automatically information collection, dynamicmonitoring and management, decision supporting serving upon the city’s infrastructureand functional mechanism. It has the functionalities of digital, networked, virtualsimulation, decision support and optimization, and visualization performance for urbangeography, resources, environment, population, economic, social and other complexsystems. How does the digital spatial information engineering construction andmanagement of the vast amounts of spatial information data ultimately safely andeffectively serve the governments bureaus and the general public becomes the researchfocus of the ministries and the social digital city construction organizations during thedigital city systematic projects. The construction of the spatial information resourcessharing services platform will be among the top priority of digital city construction.This thesis analyzes the data structure of Xiangtan City Investigation&DesignInstitute and relative bureaus. It works on the effective management and integration ofall kinds of heterogeneous data. The design of public information share serviceplatform is based on a standard principle and method of SOA, manipulated by OGCrules, with the help of Web Service and runs a data storage model of combination ofdistributed storage and centralized shared data storage. It designs and develops a dataservice interface through the help of.NET development software, so to establish thepublic information share service platform of Digital Xiangtan and reach an influentinformation intercommunication. This project will gurantee long time stableperformance and bring satisfying social benefits and economic benefits. At the sametime, it will supply a private and secure data service to the bureaus of Xiangtan cityand civil engineering companies working on Digital Xiangtan, and build up a reliabledata sharing platform. After half year’s running, the platform has been approved by City leaders and all users from its effective structure, strong performance, outstandingcharacters and considerable interests.