Remmina is a free and open-source project released under GNU GPL license. Remmina is a remote desktop client written in GTK+. It’s perfect for system administrators and travelers needing to work on remote computers. Remmina supports multiple network protocols like RDP, VNC, NX, XDMCP and SSH.
I currently use Remmina to view my Macbook Air remotely from my Linux desktop. It works great so far. I have it running for a better part of the day. It’s seem to be responsive. The remote mouse and keyboard works perfectly. The screen quality is not quite near as the Macbook Air display, but then again, it’s a remote desktop client.
Remmina is available to Ubuntu and Linux Mint users. You can install by typing on the Terminal:
$ sudo apt-get install remmina
The Remmina Remote Desktop Client icon is available under Menu > Internet.
Visit Remmina’s website.