ASP, Biztalk server SQL DB and Firewall architecture.

From: Sarbjit Singh Gill (ssgill@gilltechnologies.com)
Date: 11/20/02

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    From: "Sarbjit Singh Gill" <ssgill@gilltechnologies.com>
To: <focus-ms@securityfocus.com>
Date: Wed, 20 Nov 2002 22:19:26 +0800

    Greetings folks,

    I am facing the following problem and hope to get some valuable advise from
    all of you. I would appreciate it if there could be some response on this.

    In our architecture, we have a web server, a Biztalk server and a database
    server. The Web server hosts the ASP page where the external customer will
    access. The external customer will submit files via this ASP page. ASP page
    will upload the file and store in some directories so that BIZTALK can
    process.

    But now the problem is that Web server is hosted in DMZ(between external and
    internal firewall), and Biztalk server and database server are hosted
    behinds the firewall. Also, since the file receive function of BIZTALK can
    only poll the file from the local hard disk, the files to be processed by
    BIZTALK must somehow be available in BIZTALK server.

    Can ASP sitting in DMZ upload the file to the BIZTALK server which is
    sitting behind firewall? Can BIZTALK server be accessible from web server
    since they are separated by firewall. If yes is there any setting needs to
    be done to achieve this? Or is there other better methods that u can think
    of to process the file using the current architecture? Do u knows what are
    the common implementation for this type of scenerio?

    Thanks in advance for the help.

    Kind Regards
    Gill

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