ubuntu virtual machine on the external network, link mode select Points;
① if it is their home computer, directly connected broadband, choose bridge mode, simple and convenient; the host and virtual machines each have their own fixed ip address
Bridge Mode configuration: http: //blog.csdn.net/wumumang/article/details/54173075
② If the campus network, or companies that have a place outside ip address access control, can not be used in bridge mode, because the bridge mode, the virtual machine they have fixed ip address, and your ip address for this campus network ip restriction is concerned, there is no access to external networks. It is necessary to switch net mode, the shared host ip assigned to the specified network, the external network is achieved
net mode configuration: http: //blog.csdn.net/wumumang/article/details/54135825
In the Change adapter settings when the property shared, display settings, error, null
Solution: windows of a Windows Firewall service does not start, you can start up