In$\_\_\_\_\_\_\_\_\_\_\_$ you manage the cloud in house, or contract the management function to a third party. Additionally, the cloud servers and storage devices may exist on premise, off premise or both. Private clouds can deliver IaaS internally to employees or business units through an intranet or the Internet via a virtual private network $($VPN$),$ as well as software $($applications$)$ or storage as services to its branch offices.