I have a VB.net app that connects to a remote SQL server via TCP/IP. Most
folks can connect just fine. However some enterprise users are in a
corporate environment that will only allow connections through a corporate
proxy server.

The VB app does the connect to the remote SQL server via a fully routeable
IP address over port 1433.

Having no such experience, I have no idea what I need to do to my app to
allow that. And what sort of interaction I will personally need to have (if
any) with thier IT department to configure the proxy server in any way. The
user mentioned that "Only permissible outbound connection is through proxy
server and it is only allowed with TCP/IP port 80 and it is only possible by
authenticating with Domain ID and password." I would assume that means the
connection from the VB app to the Proxy server is over port 80 and that
somehow the proxy server will know (or be told) to then route to IP address
of the SQL Server over port 1433.


Can anyone offer any insight or links that might point me in the right
direction?

Thanks!
Gary

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