The disclosure presents systems, methods and computer program products relating to an overlay network in a cloud environment. A management machine may manage an overlay network. Machine(s), which may be provided by cloud provider(s), may be added to or removed from the overlay network. Data relating to a machine may be gathered and configuration data may be determined, for example when the machine is being added to the overlay network. A device associated with a user authorized for the overlay network may connect to the overlay network. The overlay network may include one or more secure tunnels wherein a private IP address or public IP address may encapsulate an overlay IP address.