摘要： 本文针对UNIX系统的一个安全弱点—特殊文件的弱保护性提出一种改进方案,该方案是通过核心对文件直接进行保护,这一方案的实施可大大改善UNIX系统的安全性能。本文首先对UNIX的安全性进行简要介绍,然后详细介绍了对UNIX系统的上述安全弱点的改进方案:核心直接保护法。

关键词: UNIX系统, 安全, 改进

Abstract: An improvement on the security of UNIX-Kernel Protection of Special File (KPSF) is discussed, starting with the security of UNIX briefly, mainly on its access control, and covering its weakness-weak protection of special file. An improved method KPSF is prcsented.The performance of improved system justifies our work.