1. Ubuntu needs to run in Virtual Box as a bridged network
2. Make sure you have SSH installed, it will automatically start
sudo apt-get install ssh
3. Use ifconfig to get the virtual machine's IP address
4. Use putty and SSH onto that machine or FileZilla
You can remove SSH by (did not disable)
sudo apt-get remove ssh
Start/Stop with:
sudo /etc/init.d/ssh stop
sudo /etc/init.d/ssh start