Information warfare is the major operation mode in modern wars, in which network war take an important part. Distributed and network computer system is the chief target in attack and defense.

信息战是现代战争中重要作战样式，网络战是信息战的重要组成部分，分布式、网络化的计算机系统是信息作战中实施攻击与防护首要作战目标。

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Network attack and defense are two inseparable components of network war. If we want to achieve the succession of attack and defense, we must know the protocol that support the network's run.

网络攻击和网络防御是网络战中不可分割的两个部分，要实现防御和攻击，必须首先了解支撑网络运行的协议。

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Network attack and defense are two inseparable components of network war. If we want to achieve the succession of attack and defense, we must know the protocol that support the network's run.

网络攻击和网络防御是网络战中不可分割的两个部分，要实现防御和攻击，必须首先了解支撑网络运行的协议。

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