| 摘要 |
Methods and apparatus are provided for providing secure communications around a firewall. The firewall is configured to only pass packets if they originate on a more protected side of the firewall, of if they are in response to such a packet. A persistent secure connection is made from a connection manager program inside the firewall to a server outside the firewall. A protocol request message is then sent from the connection manager to the server over the secure connection. Requests arriving from a client are embedded in a protocol response message and sent to the connection manager program. After processing, the results, if any, are sent as a protocol request message to the server, which extracts the result from the protocol request message and puts the result in a protocol response message which is sent to the requesting client.
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