摘要： 基于对Client／ServerXWindow窗口系统的分析，详细阐述了XWindow应用中存在的安全问题，并提出了应用层的解决方法，即正确使用和配置XWindow窗口系统，保证系统的安全。最后，讨论了一个最近发现的MSWindows下的XWindow程序Exceed对企业网内部的邮件服务器的安全威胁。

关键词: X Window, 邮件服务器, 安全性认证, 主机认证, 标志认证

Abstract: This artcle analysis the Client/Server structure of the X Window system-indicates the Problems of the X Window application, and presents some solutions in the applicable layer, namely use and configure X Window correctly to ensure the security of the system. At last, we discuss a new vulnerability caused by the Exceed program which runs under MS Windoews. The vulnerability can damage the mail server of a corporation or a university.

中图分类号: 

• TP316