大型企业网络安全整体解决方案
信息系统开始运行以来就存在信息系统安全问题，通过网络远程访问而构成的安全要挟变成日益受到严重重视的问题。(Information system security problems have existed since the beginning of operation of the information system, and the security threat posed by remote access through the network has become an increasingly serious problem.)
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