This specification has very for the client and the server is behind a firewall, the firewall in a different enterprise domain discloses a system for providing two-way Web services without or with only small variation change. In accordance with the illustrative embodiment, a "tunnel hub" is arranged in the public domain "tunnel gateways" are disposed behind a firewall this time if the client requests a two-way interactive services that the server provides a service. Each tunnel gateway initiates a secure tunnel through the firewall to the target hub. Thereafter, the request for service enters the tunnel gateway to the server is moved to the tunnel hub and to the appropriate tunnel gateway provides a service. When the server provides the service, the service enters the tunnel gateway, the client moves on to the tunnel hub and to the appropriate tunnel gateway requesting service.
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