**Yes, connection method SSH will be same in both cases. **
Piaware can be I stalled in two ways:
(1) Install Raspbian Linux using Raspbian image from Raspberry Pi official site, then install dump1090 and Piaware data feeder from Flight aware site. In this case the OS Raspbian Linux (Raspbian Wheezy) has login user name pi and password raspberry.
(2) Install Raspbian Linux using **Piaware image ** from Flight aware official site. You don’t have to install any other software as thls is a complete image containing Raspbian OS, dump1090, and Piaware data feeder. In this case the OS Raspbian Linux has login user name pi and password flightaware.
**If your desktop is Ubuntu, you don’t need to install SSH client. The console/terminal is capable to SSH. I am not sure about Mac desktop, but as far as I remember, it’s console/terminal is also SSH capable. Please check from documentation or Google it. **