Resources of a server node are logically divided into a plurality of sets of resources. At least one set of resources is assigned to one or more client nodes. The association of the at least one set of resources with the one or more client nodes is via a data structure stored at the server node. The data structure is provided by a trusted agent over a communications medium coupling the server node and the one or more client nodes. It includes information that indicates the resources accessible by the client nodes. To access the information, an identifier, also provided by a trusted agent, is employed.