# VirtualBox

> VirtualBox is a free, open source hypervisor from Oracle that runs virtual machines on a desktop or laptop.

- Source: https://www.itwonderlab.com/virtualbox/
- Published: 2026-09-14
- Updated: 2026-09-14
- Author: Javier Ruiz Jiménez (https://www.javierruizjimenez.com/)
- Site: IT Wonder Lab (https://www.itwonderlab.com/)

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**VirtualBox** runs guest operating systems in virtual machines on Linux, Windows and macOS. In these tutorials [Vagrant](https://www.itwonderlab.com/vagrant/) uses it to create local servers for [Kubernetes](https://www.itwonderlab.com/kubernetes/) clusters.

### Key concepts

- **Host-only network**: a private network between the host and the VMs.
- **NAT** and **bridged** networking for internet access.

### Learn it

See [Kubernetes with Ansible and Vagrant](https://www.itwonderlab.com/ansible-kubernetes-vagrant-tutorial/).

Use it with Vagrant: [Install Vagrant and VirtualBox](https://www.itwonderlab.com/install-vagrant-virtualbox/).