Abstract: An information management method, a device, a system and a medium. The information management method applied to a first terminal, including: sending an information acquisition request to a server, so that the server responds to the information acquisition request and sends visitor information to the first terminal; receiving the visitor information sent by the server; generating card information according to the visitor information; and sending the card information to an electronic card, so that the electronic card displays the card information.

Abstract: A container isolation method for a netlink resource includes receiving, by a kernel executed by a processor, a trigger instruction from an application program. The method also includes creating, by the kernel according to the trigger instruction, a container corresponding to the application program, creating a netlink namespace for the container, and sending a notification to the application program indicating that the netlink namespace is created. The method further includes receiving, by the kernel, a netlink message from the container, wherein the netlink message comprises entries generated when the container runs. The method additionally includes storing, by the kernel, the entries based on an identifier of the netlink namespace for the container, to send an entry required by the container to user space of the container.

Abstract: A data configuration mechanism includes determining an upgrade profile based on an original data management model and an updated data management model. One or more data nodes are changed between the original data management model and the updated data management model. The upgrade profile indicates path information of the changed data nodes and indicates an update operation of the changed data nodes. Corresponding data for the changed data nodes are configured based on the path information and the update operation.

Abstract: A container isolation method for a netlink resource includes receiving, by a kernel executed by a processor, a trigger instruction from an application program. The method also includes creating, by the kernel according to the trigger instruction, a container corresponding to the application program, creating a netlink namespace for the container, and sending a notification to the application program indicating that the netlink namespace is created. The method further includes receiving, by the kernel, a netlink message from the container, wherein the netlink message comprises entries generated when the container runs. The method additionally includes storing, by the kernel, the entries based on an identifier of the netlink namespace for the container, to send an entry required by the container to user space of the container.

Abstract: A data configuration mechanism includes determining an upgrade profile based on an original data management model and an updated data management model. One or more data nodes are changed between the original data management model and the updated data management model. The upgrade profile indicates path information of the changed data nodes and indicates an update operation of the changed data nodes. Corresponding data for the changed data nodes are configured based on the path information and the update operation.