To download Dropbox, you can do this by typing the following in a terminal:
wget -O dropbox.tar.gz "http://www.dropbox.com/download/?plat=lnx.x86_64"
Extract the file
tar -xzvf dropbox.tar.gz
Run dropboxd to link this server to your account
You will be prompted to visit a URL, copy this into a browser as this wil complete the linking to your account. You will also now get a ~/Dropbox folder created.
You now need to create a service which will start on boot.
sudo wget http://blogs.barlow.uk.net/content/downloads/dropbox
sudo nano dropbox
Make sure you replace the DROPBOX_USERS with a comma separated list of users you wish to run Dropbox on your server.
Now you need to grant the script file execute rights, and add it to the default system run levels.
sudo chmod +x /etc/init.d/dropbox
sudo update-rc.d dropbox defaults
You can now start the service
sudo service dropbox start
Now that you have installed Dropbox and it should now be working, I also suggest installing the dropbox.py script, which will allow you to see what Dropbox is doing. To install this complete the following:
wget -O ~/.dropbox/dropbox.py "http://www.dropbox.com/download?dl=packages/dropbox.py"
chmod +x ~/.dropbox/dropbox.py
Now you can easily check the status of the Dropbox client with following command
Get more help dropbox.py with following command