I've decided to use Ubuntu as my workspace but it seems I can't launch RDP from SSLVPN to work on

In windows when I click launch it should ask me to install Juniper Terminal client but it does not ask me when I try it on Ubuntu. I expected a jar file that would be installed and work to RDP into windows.
Has anyone using linux and rdp from sslvpn directly?
I heard of JavaRDP14-1.1.jar but not sure if I should install that on my ubuntu and try sslvpn rdp again?
I don't want to go back to windows, please help. I've setup everything except this to start.