Here are some instructions on how to use Apple Remote Desktop Client to connect from a MAC outside the DUMC firewall to your BIAC Windows computer inside the PHI zone.
1) Install the Apple Remote Desktop Client : Microsoft Remote Desktop for OS X
2) If you have access to the Duke VPN, open Cisco AnyConnect and login to the VPN ( vpn.duhs.duke.edu )
3) Once the VPN is connected ( or tunnel has been created), then open the RDC client.
Once you are finished with the RDC, close the client and “Ctrl + C” will kill your ssh tunnel.