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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