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SSH-VPN-VNC/README.md

+# SSH, VPN, VNC related Problems
+
+## Q: How to transfer files between two VPN networks?
+
+You should be able to use an SSH tunnel.
+
+Assuming you're trying to transfer a file from a remote computer ("remote") to your local computer ("local"), 
+establish the tunnel via the third computer ("gateway") by typing this on your local computer:
+
+`ssh -fNL 12345:remote:22 gatewaylogin@gateway`
+Then you can run an unlimited amount of SCP commands on this tunnel (still typing on your local computer):
+
+`scp -P 12345 remotelogin@localhost://path/to/remote/file /local/path/where/you/want/file`
+I just tested this on my network, and it worked perfectly.
+
+The above method is fine if the remote network is secure, but if it is not secure,
+you'd need to establish a tunnel between local and gateway, and another tunnel between gateway and remote, linking the two by a common port number.