Disclosed is a server including a transceiver, and a controller configured to receive, via the transceiver from a terminal, multimedia contents, store the multimedia contents, receive, via the transceiver from the terminal, a request for establishing one of a plurality of access modes with respect to the multimedia contents, wherein the plurality of access modes includes a restricted mode where at least one user designated by the terminal is allowed to access the multimedia contents, and a public mode where all users are allowed to access the multimedia contents, establish an access mode for the multimedia contents based on the request, and transmit, if the request includes information on the at least one user, via the transceiver to the at least one user, a notification that the at least one user is allowed to access the multimedia contents, based on the information on the at least one user.