An SSL/TLS handshake requires at least 10 times more processing power on a server than on the client. SSL renegotiation attacks can readily take advantage of this asymmetric workload. Watch this video to learn how to easily mitigate these attacks.
Desktop Linux OSes such as Ubuntu are surprisingly easy to use, very much in the mold of the widely known Windows XP. Users are greeted with a conventional desktop, a simple menu interface, familiar icons and contextual menus, and a Start-like app bar.