Ubuntu虚拟机网络连接方式设置: http://blog.csdn.net/u013052460/article/details/50039937 or http://www.gezila.com/tutorials/45698.html Ubuntu虚拟机代理设置,系统设置+Firefox设置: http://jingyan.baidu.com/article/642c9d34eb2adb644a46f7bd.html or http://www.jb51.net/os/Ubuntu/29