VirtualBox
Introduction | |
NAT Network | |
Add an adapter | |
Windows 7 on Debian | |
Centos 7 on Ubuntu | |
Errors |
NAT Network
New NAT Network can be created in a following way
File → Preferences → Network → +
Preferences can be accessed by pressing CTRL + G

Got to Network

Click at the plus sign on the right. VirtualBox will create a network NatNetwork

By clicking plus sign again you can create new NAT networks they will use naming: NatNetwork1, NatNetwork2 …

Add Adapter
To add an adapter to an existing machine you should Power Off it first.
Then open Settings → Network → Select the Adapter, e.g. Adapter 3 → Tick Enable Network Adapter box

Configure the Adapter

Export and import of VMs
To move VM from one computer to another you can open File → Export Appliance… (Ctrl+E) save .ova file, and move it to another computer, then open File → Import Appliance… (Ctrl+E) and select that .ova file.