So if you are a Macintosh user and are looking for a good Remote Desktop app for a Mac, look no further than the Microsoft offering, as it works very well. Nevertheless, it works and this is a great way to connect to a remote machine. But I set payment details as “none” and added a valid phone number and it let me install the app. I just hate Macintosh app store, I was asked to add payment details to install a free app. Just enter your username and password to connect to the Ubuntu session. Connecting via RDP to an Ubuntu Fluxbox session from a Mac. This is of course just as easily managed from a Windows machine. Now the user may run the RDP app and connect to the remote Ubuntu machine very easily.