要技术分为分组

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输的数据提供安全保障。 的服务① 服务器鉴别允许用户鉴别服务器的身份支持 客户端通过验证服务器证书鉴别服务器身份并获取公钥。② 客户鉴别 可选的安全服务允许服务器证实客户身份。③加密的 会话对客户和服务器发送的所有报文进行加密并检测报文是否被篡改。 防火墙与入侵检测 恶意用户或软件通过网络利用系统的漏洞进行入侵包括病毒木马 等。之前讨论的所有安全机制都不能有效的解决这些问题。 防火墙 种访问控制技术严格控制进出网络的分组禁止任何不必要的通信从而减少。

潜在侵入的发生。防火墙是种特殊编程的路由器安装在个网点和网络中的其余部分之间目的是实施访问控制策略。策略是由防火墙单位自行制定的般防火墙内的网络叫做可信任网络防火墙之外的网络叫做不可信网络。防火墙的主能 冰岛手机号码列表 建过滤和应用网关。 入侵检测 防火墙应用于入侵发生前但防火墙不可能阻止所有入侵所以需要第二道防线也就是入侵检测应用于入侵发生时。①基于特征的入侵检测维持个已知攻击特征的数据库每个特征是个于某种入侵活动相关联的规则集缺点是只能检测。



已知攻击对未知攻击束手无策。②基于异常的入侵检测通过观察正常运行的网络流量学习正常流量的统计特性和规律当检测到网络中的流量不合规律时就认为可能发生了入侵。 文章知识点与官方知识档案匹配可进步学习相关知识 网络技能树认识身边的计算机网络常见的网络设备 人正在系统学习中 版权声明本文为 博主「无枒」的原创文章遵循 版权协议转载请附上原文出处链接及本声明。 原文链接 网络把主机连接起来而互联网是把多种不同的网络连接起来因此互联网是网络的网络。 互联网服务提。

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