网络安全态势感知系统简述

Outline of Network Security Situation System

任务关键网络系统作为一类特殊的网络信息系统在影响人民生活和社会发展的诸多领域得到了广泛应用。然而,不断恶化的网络环境使得该类系统面临的安全问题日益突出,在依靠传统网络安全技术无法满足人们对其安全需求的背景下,网络安全态势感知研究便应运而生。综述了网络安全态势感知系统的国内外研究现状;介绍了Netflow基本原理。

Mission-critical network system（MCNS）,as a special kind of network information system,has been widely applied in many fields that affect people＇s lives and social development.However,network environment worsening makes security problems facing by the system become more and more obvious.Under the circumstances that traditional network security technologies can not satisfy people＇s se-curity requirements any longer,research on network security situational awareness（NSSA） emerges as the times require.The summarization of studying situation inNSSAS allover theworldwaspresented firstly.Basic principles and da-ta formats of Netflowwere given.