ubuntu root用图形界面登录
http://blog.csdn.net/weimine/article/details/69055536
http://blog.csdn.net/gongxifacai_believe/article/details/53135518
http://blog.csdn.net/imjtrszy/article/details/48572713
--添加用户:
http://www.cnblogs.com/baby123/p/6532525.html
--xrdp
http://blog.csdn.net/longhr/article/details/51657610