http://drivemeca.blogspot.com/2014/04/como-instalar-ubuntu-server-1404-
trusty.html
http://drupalalsur.org/apuntes/como-instalar-un-servidor-lamp-en-ubuntu-1404
https://docs.moodle.org/all/es/Guia_de_instalacion_paso-a-
paso_para_Ubuntu#Paso_1:_Instalar_Ubuntu_14.04LTS
https://www.youtube.com/playlist?list=PL1E2945ECAF010C9C
http://www.pacorabadan.com/?p=917