1. A server for controlling a plurality of clients, said server comprising: a control device, adapted to (a) select at least one client which has a privilege for controlling an image sensing device remotely, (b) prohibit unselected clients from controlling the image sensing device while the selected client is controlling the image sensing device, and (c) enable the unselected clients to receive video information captured by the image sensing device; and a notification device, adapted to notify a user captured by the image sensing device, as to which client is selected for controlling the image sensing device and which clients receive the video information captured by the image sensing device, in response to a request from the user.