Depending what software you use to virtualize and network layout, you can change the network mode to limit access. Cloud Network: This is an experimental VirtualBox network mode that launched with VirtualBox 7.0.6 in January 2023 that allows a local VM to connect to a subnet on a remote cloud service to make it accessible over the internet, among other enterprise use cases. In the follow examples, this is the network scope: WAN network (the internet) LAN network (192.168.0.0/24) Virtual network (172.16.128.0/24) Isolating the lab.Keep in mind that this is the only network mode in VirtualBox where your VMs don't have internet access. In this mode, the VMs are separated even from the host machine and are on a network of their own. Internal Network: This sets up an internal network between multiple VMs.This setting might also be called Host-only Network on some older versions of VirtualBox. This provides the highest level of network security for your VMs, with the trade-off being rather limited networking capabilities. Host-only Adapter: Under this setting, your VMs and the host machine are all connected but are physically cut off from the rest of your network.Of course, this also means that your VMs get access to the internet. Bridged Adaptor: Under this setting, each VM is treated as a separate machine on your actual network, meaning the host machines, any VMs you might have and any other devices on your network can talk to each other without any hassles.This means that the host machine and all your VMs are on an isolated network where they can communicate with each other and use the host machine's internet connection to connect to the internet. NAT Network: This is similar to a NAT but adds all the VMs you created in VirtualBox to the network instead. ![]() The VM can also use the host's internet connection in this network mode. It's an isolated network, meaning no other machine other than the host and the specified VM can talk to each other. NAT: Network address translation (NAT) sets up a dedicated network between the host machine and the specific VM for which you select this mode.You can then install drivers for the generic network interface using an extension pack, but they're often included with VirtualBox anyway. Generic Driver: This network mode lets you share the generic network interface of your host machine with the selected VM, meaning the particular VM gets its own network controller and is separated from the rest of the physical network. ![]()
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