The subject of the invention concerns a process to restrict, to the benefit of authorized users, access to at least one restricted access resource belonging to at least one interactive service of at least one cluster of services, each user having a processing and memorizing unit linked up to a client machine capable of executing a client program adapted to exchange from a transmission network, data with a server program associated to each interactive service having a service identifier, access to a resource being provided by a request sent by the client program to the server program which processes said request and returns to the client program the response to the request.