books.google.com.ar - This book is designed as an Ubuntu 9.10 server reference, covering the Ubuntu servers and their support applications. Server tools are covered as well as the underlying configuration files and system implementations. The emphasis is on what administrators will need to know to perform key server support...http://books.google.com.ar/books/about/Ubuntu_9_10_Server.html?hl=es&id=bjefCQXg0ToC&utm_source=gb-gplus-shareUbuntu 9. 10 Server