【摘要】 根据基于策略机制的文件保护模型,实现了一个文件保护系统PFICS。该系统能够根据用户制定的文件保护策略检查文件系统中违反策略的行为,采取相应的保护措施进行文件的实时恢复,进而维护文件系统的完整性。PFICS采用一个服务器保护多个主机的文件系统,构成了一个分布式的实时文件保护系统。该文介绍了系统的体系结构和实现方法,并对系统性能进行了分析。更多还原

【Abstract】 With the proposition of policy-based file protect model, a file protect system PFICS is implemented. It can check the violation of policy in file system according to file integrity policies specified by users, take actions to recover files in real time and, thus, maintain file system integrity. PFICS is a distributed file protect system which uses one server to protect file systems of multi-hosts. This paper introduces the architecture and implementation of the system, and analyses its performance.更多还原