| RESEARCH ON THE SECURITY OF NATIONAL GEOSPATIAL DATA CLEARINGHOUSE BASED ON ASP |
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| 作者姓名： | ZHANG Li GONG Jianya ZHU QingZHANG Li Ph.D.Candidate National Laboratory for Information Engineering in Surveying Mapping and Remote Sensing WTUSM Luoyu Road Wuhan China |
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| 作者单位： | ZHANG Li GONG Jianya ZHU QingZHANG Li，Ph.D.Candidate，National Laboratory for Information Engineering in Surveying，Mapping and Remote Sensing，WTUSM，129 Luoyu Road，Wuhan 430079，China |
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| 基金项目： | theMajorStatebasicResearchProgram (No.G1 9990 4 380 1 ) |
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| 摘 要： | 1 ＩｎｔｒｏｄｕｃｔｉｏｎＮｅｅｄｌｅｓｓｔｏｓａｙ ,ｉｔｉｓｖｅｒｙｉｍｐｏｒｔａｎｔｆｏｒｍｏｓｔＧＩＳｕｓｅｒｓｔｏａｃｑｕｉｒｅａｎｄｉｎｔｅｇｒａｔｅｔｈｅｇｅｏｓｐａｔｉａｌｉｎｆｏｒ ｍａｔｉｏｎｆｒｏｍｖａｒｉｏｕｓｄｉｓｔｒｉｃｔｓ.Ｈｏｗｅｖｅｒ ,ｔｈｅｃｕｒｒｅｎｔｓｉｔｕａｔｉｏｎｏｆｇｅｏｓｐａｔｉａｌｉｎｆｏｒｍａｔｉｏｎｐｒｏｄｕｃｔｉｏｎａｎｄｄｉｓｓｅｍｉｎａｔｉｏｎｉｎｔｈｅｗｏｒｌｄｉｓｓｔｉｌｌｕｎｓａｔｉｓｆａｃｔｏｒｙ .Ｏｎｏｎｅｈａｎｄ ,ｕｓｅｒｓｄ…
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| 关 键 词： | active server pages (ASP) national geospatial data clearinghouse (NGDC) geographic information system (GIS) Internet |
Research on the security of national geospatial data clearinghouse based on ASP |
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| ZHANG Li GONG Jianya ZHU QingZHANG Li,Ph.D.Candidate,National Laboratory for Information Engineering in Surveying,Mapping and Remote Sensing,WTUSM, Luoyu Road,Wuhan ,China.RESEARCH ON THE SECURITY OF NATIONAL GEOSPATIAL DATA CLEARINGHOUSE BASED ON ASP[J].Geo-Spatial Information Science,2000,3(3):47-51. |
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| Authors: | Zhang Li Gong Jianya Zhu Qing |
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| Institution: | (1) National Laboratory for Information Engineering in Surveying, Mapping and Remole Sensing, WTUSM, 129 Luoyu Road, 430079 Wuhan, China |
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| Abstract: | On the basis of the authors' experiences of setting up an NGDC Web site,this paper attempts to present some significant aspects about the security of NGDC based on ASP.They include data storing,database maintenance,new technical support and so on.Firstly,this paper discusses how to provide the security of data which is saved in the hosts of NGDC.The security model of "Networks_DB Server_DB_DB Object" is also presented.In Windows NT Server,Internet Information Server (i.e.,IIS) is in charge of transferring message and the management of Web sites.ASP is also based on IIS.The advantages of virtual directory technique provided by IIS are emphasized. An NGDC Web site,at the Research Center of GIS in Wuhan Technical University of Surveying and Mapping is also mentioned in this paper.Because it is only an analoge used for case study,the transmission of digital spatial products is not included in the functions in this NGDC Web site.However,the management of spatial metadata is more important and some functions of metadata query are implemented in it.It is illustrated clearly in the functional diagram of the NGDC Web site. |
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| Keywords: | active server pages (ASP) national geospatial data clearinghouse (NGDC) geographic information system (GIS) Internet |
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