2. The computer-implemented method according to claim 1 , wherein the client characteristics include one or more of an IP address, a MAC address, or session management technique implemented by the client.
2. The computer-implemented method according to claim 1 , wherein the client characteristics include one or more of an IP address, a MAC address, or session management technique implemented by the client. 7. The computer-implemented method according to claim 2 , wherein the session management technique includes at least one of a username and password provided by the client, a secure shell or transport-layer security communication protocol used by the client, or the client allowing cookies for session management to be stored at the client.