Windows7 uses VirtualBox to install Ubuntu NIC configuration

Win7 to install Ubuntu with VirtualBox, requires Ubuntu to connect to the Internet, and configure SSH, FTP, NFS services in Ubuntu, can access from Win7. At this point, the Linux virtual machine requires two network cards, one is connected by NAT (network address translation network) and used to connect to the Internet; the other is set to bridged, which is used to establish SSH, FTP, and NFS connections. The machine (Linux host network card IP and Win7 network card IP) should be in the same network segment, such as 192.168.0.x, the subnet mask 255.255.255.0NAT connection network card, use the default settings; and the bridge network The network card is slightly different. If the Win7 local connection is already connected to the network, as shown in the figure, the bridged network card is bridged to the locally connected network card (Realtek PCIe GBE Family Controller in the figure), and then the virtual machine's bridge network card IP, Set to the same network segment as Win7 local connection. If the local connection of Win7 is disconnected, Wifi is used, or the Internet is not connected, the bridged network card cannot be used (it cannot be bridged with the wireless network card). Only the host adapter can be used at this time, as shown. Keep the virtual NIC added during VirtualBox installation enabled and set it up (it can be understood that this virtual NIC replaces the locally connected NIC).

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