"This guide explains how you can run virtual machines
with Sun VirtualBox 3.1 on a headless Ubuntu 9.10 server. Normally
you use the VirtualBox GUI to manage your virtual machines, but a
server does not have a desktop environment. Fortunately, VirtualBox
comes with a tool called VBoxHeadless that allows you to connect to
the virtual machines over a remote desktop connection, so there's
no need for the VirtualBox GUI.
"1 Preliminary Note
"I have tested this on an Ubuntu 9.10 server (host system) with
the IP address 192.168.0.100 where I'm logged in as a normal user
(user name administrator in this example) instead of as root.
"2 Installing VirtualBox
"To install VirtualBox 3.1 on our Ubuntu 9.10 server, we open