My employer switched from vpn and rdp to using what our admin calls "rdp over https". Since that switch I find myself unable to connect to the "new" rdp server.

I think the progress is as follows:

• A rdp gateway-server is connected via tls
• the requested sever (different from the gateway-server) is then connected through the tls connection.

In windows mstsc-settings the server name is the "internal network name" of the machine I wish to connect. And on the last tab (in German it is called "leistung" - could be activity) I go to the "connection from everywhere" settings and set the gateway-server under gateway-server.

Now:
Is there any way to use this scenario under linux (apart from a virtual machine running Windows)?
I am interested in

• free ideas (e.g. is it possible to create a tls tunnel and connect through that using freerdp/rdesktop?)
• non-free ideas. As long as they work I'll worry about the costs later.

Free ideas would be better :-)