The letters on the links in Figure 4 indicate the protocols used across those communication links. For each protocol, we list the usage and also provide some information on firewall friendliness.

在图4中，链接上的字母表示跨那些通信链接使用的协议。

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If attack exists, state information management module will dynamically allocate and manage the firewall rules to filter the related data packets based on the control message.

如果存在攻击，状态信息管理模型根据接收到的控制信息添加阻断规则以实现动态响应。

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But while Kagermann said that some of TomorrowNow's downloads may have been inappropriate, he said a "firewall" set up between SAP and TomorrowNow kept that information confined to TomorrowNow.

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The firewall has long been emblematic of the enterprise's approach to information security, and software solutions have imposed rigid processes and limited licenses to employees to minimize the risk of the wrong information ending up in the wrong hands.

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