I will preface this by saying that I am a solution architect, and I have a client who wishes to host an app in the cloud. The app needs to access information from SAP and other systems.
What is the best way to securely connect from a cloud machine to an erp system in a corporate network? I would like to do this without altering the firewall. Ideally I would like to have some kind of tunnel from the app to the SAP server.
I saw a company called RunMyProcess which has a software component which you install on a server behind a firewall, which somehow allows them to access your internal systems. I think they use Google Secure Data Connector.
How does this work?