高安全度虚拟组织中动态防火墙的设计和实现

Design and Implementation of a Dynamic Firewall for Highly Secure Virtual Organization

网格计算的本质含义是在动态变化的、拥有多个部门或者团体的复杂虚拟组织内,灵活安全地协同实现资源共享和问题求解[1]。建立安全、稳定、可扩充的虚拟组织是整个网格技术的基础。本文分析了在网格环境下组建高安全度虚拟组织时传统防火墙体制遇到的问题,设计了旨在保障虚拟组织高度安全性的新型动态防火墙模型,并给出了在Linux平台下这种防火墙的实现方法。

The essential meaning of grid computing is flexible, secure, coordinated resource sharing and problem solution among complex virtual organizations with many departments and collectives. Establishing the secure scalable and expansible virtual organization is the base of whole grid technology. The problems with the traditional firewall when designing high security demanding virtual organizations in the grid circumstance are analyzed in this paper. The design of new dynamic firewall model to guarantee the high security of virtual organizations and the implementation of that model based on Linux platform are given.