Configuring a virtual machine

Before the operating system is installed on the virtual machine, it is a good idea to configure the virtual network interfaces available to the machine. Follow these steps to configure the virtual machine:

1. From Oracle VM VirtualBox Manager, choose the virtual machine and click on the Settings icon. A window will appear that defaults to the General settings:
   
2. Click on the Network icon to modify the network interfaces presented to the virtual machine. The first adapter available, Adapter 1, should be enabled and attached to the vboxnet0 host-only network created earlier:
   
3. Adapter 2 should be enabled and attached to the vboxnet1 host-only network created earlier. The Promiscuous Mode setting should be changed to Allow All:
   
4. Adapter 3 should be enabled and attached to the NAT network:
   

   Note

   By default, VirtualBox provides a NAT network that allows virtual machines to use the host machine for outbound network access. This network is required for the virtual OpenStack node...