Much of the book is very good, however I strongly dislike setting up root as the internet connection. This feels very dangerous, but if there is a location in which a different way of setting this up is discussed, I didn't notice it. I feel that ideally root should never be logged on as the internet connection, although I realize that this would probably render the apt-get process much more cumbersome. Certainly, however, root should not be the default id to use with which to log onto the internet. Perhaps I have misunderstood this, and I hope so (if so, I would like to be informed).