| 摘要 |
An energy exchange network provides services to users through a firewall. The firewall includes a plurality of ports and a plurality of services. Access to a client through the firewall is controlled by mapping a port to a service so that at any given time, the client is communicating with one service via one port. A different service must access the client through a different port. Typically, services are provided sequentially so that access through the ports is also sequential, a service is not given more access than needed at any point in the sequence, hence a user can only respond to the service currently connected and cannot access other services.
|
