common connection table the state of any connection if the connection is new or if the connection state has changed application_number US 31752202 A description the method according to the invention may be implemented in the context illustrated in fig1 wherein a server farm 10 is connected to the internet network 12 or any other intranet network by the intermediary of a lan 14 and an internet access router iar 16 several customer cabinets such as cabinets 18 and 20 are hosted in server farm 10 each cabinet including one or several customer web servers each customer cabinet is connected to at least two firewalls 22 and 24 by the intermediary of switches thus customer cabinet 18 is physically connected to a switch 26 by a link 28 the switch 26 being physically connected to firewall 22 by a link 30 and to firewall 24 by a link 32 likewise customer cabinet 20 is physically connected to a switch 34 by a link 36 the switch 34 being physically connected to firewall 22 by a link 38 and to firewall 24 by a link 40 finally firewalls 22 and 24 are physically connected to lan 14 by respectively links 42 and 44 note that a plurality of users such as users 21.