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PRINCIPLE OF VIRTUAL USE METHOD IN COMMON GATEWAY INTERFACE PROGRAM ON THE DACS SCHEME

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Author(s): Kazuya Odagiri | Shogo Shimizu | Naohiro Ishii | MakotoTakizawa

Journal: International Journal of Computer Networks & Communications
ISSN 0975-2293

Volume: 147;
Issue: 161;
Date: 2012;
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Keywords: CGI | DACS Scheme | PBNM | destination NAT | packet filtering

ABSTRACT
In the world of the Internet, Web Servers such as Apache and Internet Information Server (IIS) weredeveloped to exchange information among client computers having different Operation System. They haveonly the function of displaying static information such as HTML files and image files into the Web Browser.However, when the information is updated, the administrator updates it by manual operation. In somecases, because it is necessary to update several places about the same information, the work load becomeshigh than it is assume and update error and update omission may occur. These problems were solved byuse of a Common Gateway Interface (CGI) program such as a bulletin board system and a Blog system.However, these programs opened to Internet have often no user authentication mechanism and no accesscontrol mechanism. That is, they have the problem that user can access it freely only by getting the URLand inputting it to a Web Browser. Therefore, in this paper, we show a method to add the userauthentication and access control mechanism for them. It is called virtual use method of CGI and isrealized in the case of introducing the Destination Addressing Control System (DACS) Scheme, which is akind of Policy Based Network Management Scheme (PBNM). As the result, this kind of the CGI programcan be used in the organization with the above two functions..
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