![]() Now right-click the virtual machine’s name and choose the option ‘Settings’ or select the ‘Settings’ icon from the right pane. Select the virtual machine from the list on the left pane of the Virtualbox main window. Add a new rule and fill in the required information. In the "Network" section, click "Port Forwarding". To port forward in VirtualBox, open the main application window and go to "File > Preferences". Openssh-client installed on the Host machine.Openssh-server installed on the guest VM.Ubuntu 20.04 virtual machine running inside Virtualbox.Virtualbox installed on the host machine.Let's get started with this configuration. To check if the configuration is working, we will set port forwarding on our VM for SSH access from port 22 to port 9099 in the graphical method and from port 22 to port 2222 in the command line method. We will use a Ubuntu 20.04 virtual machine for this purpose. This guide will show you how to set up port forwarding in Virtualbox using both graphical and command-line methods. This way, the VM will remain isolated from others but still be able to access the specific services. If you want the virtual machine to have both security and access to specific services with NAT mode, you would need to use Port forwarding. In general, NAT is more secure but also more complicated to set up cross-communication with other virtual machines and the outside world. NAT has its own advantages and limitations compared to other networking modes. The default networking mode for new virtual machines created in Virtualbox is NAT (Network Address Translation). It is free for personal use, but you can purchase an Oracle VM VirtualBox Extension Pack Enterprise license if you want to use it for commercial purposes and require standard official support. Although it is open-source, some closed-source components are also included in a different extension pack. VirtualBox is a popular virtualization platform used for creating and managing virtual machines.
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