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1.
入侵检测技术IDS是一种主动保护自己免受攻击的一种网络安全技术。作为防火墙的合理补充,入侵检测技术能够帮助系统对付网络攻击,扩展了系统管理员的安全管理能力(包括安全审计、监视、攻击识别和响应),提高了信息安全基础结构的完整性。本文通过对网络安全问题域和两类不同检测思想的论述与分析,在对早期网络入侵检测系统模型的分析上的基础上,提出了一种新型入侵检测模型,从而尽最大可能减少误报和漏报情况的发生,大大提高入侵检测系统的有效性。  相似文献   

2.
网络入侵检测技术分析   总被引:1,自引:0,他引:1  
安德智  汪洋 《天中学刊》2004,19(5):16-18
入侵检测技术是目前主要的计算机及网络安全技术之一.分布式、自动化和智能化是入侵检测技术发展的方向,这需要入侵检测技术与防火墙等网络安全技术相结合。  相似文献   

3.
入侵检测技术IDS是一种主动保护自己免受攻击的一种网络安全技术。作为防火墙的合理补充,入侵检测技术能够帮助系统对付网络攻击,扩展了系统管理员的安全管理能力(包括安全审计、监视、攻击识别和响应),提高了信息安全基础结构的完整性。本文通过对网络安全问题和两类不同检测思想的论述与分析,在对早期网络入侵检测系统模型的分析的基础上,提出了一种新型入侵检测模型,从而尽最大可能减少误报和漏报情况的发生,大大提高入侵检测系统的有效性。  相似文献   

4.
网络入侵检测技术的研究   总被引:3,自引:0,他引:3  
入侵检测技术的发展给网络安全提供了又一个重要的防御手段,而基于网络的入侵检测技术更能适应网络上的安全防御,通过分析网络安全的需求,构建网络入侵检测系统模型,以期达到防御的目的。  相似文献   

5.
入侵检测技术使得网络安全从静态被动防御升华到动态主动防御。入侵检测的工作流程包括信息收集、信息分析、信息存储、攻击响应四个步骤。  相似文献   

6.
计算机和互联网技术正在改变人类社会的面貌,与之伴随而来的是信息和网络安全的问题.入侵检测是一种积极主动防御的网络技术,它通过对系统或网络中的若干关键点的信息进行检测分析,从而发现是否有违反安全策略的行为,提供了对内部供给、对外部攻击和误操作的实时保护,在网络系统受到危害之前拦截和响应入侵.按照检测技术,入侵检测系统可以分为异常检测和特征检测.文章比较了各种入侵检测技术,提出了利用基于状态的协议分析技术检测多步骤等复杂攻击的有效性,但面对高速发展的网络,也提出了这种深度检测的技术存在着的弊端.  相似文献   

7.
网络入侵防御系统(Intrusion Prevention Systems)介绍   总被引:2,自引:0,他引:2  
网络安全防御已成为世界范围内普遍关注的热门话题,与现有的网络安全解决方案诸如防火墙和入侵检测系统(IDS)相比较,网络入侵防御系统(IPS)能够以更全面、更智能的检测方法,使用户的网络免受多种类型的网络入侵与攻击。  相似文献   

8.
随着网络应用的不断扩展,网络安全问题变得越来越重要,在传统的加密和防火墙技术的基础上.入侵检测技术是对传统网络安全防御技术的补充,目前正成为网络安全技术领域内的一个研究热点。本文结合校园网实际,在比较通用入侵检测模型和基于免疫机制的检测结构模型的基础上,提出了生物启发式预警系统。  相似文献   

9.
随着信息技术的进步和网络技术的发展,网络安全逐渐成为网络应用中的重要问题和突出问题.从网络安全概念和发展现状出发,分析网络安全的防范技术,并着重对入侵检测技术进行探讨.入侵检测技术是网络安全以及信息系统安全中的有效防范技术和手段.通过对入侵技术概念、分类和主要技术方法分析,实现了对入侵系统的概念和工作流程的发展,对当前较为热门的基于数据挖掘的入侵技术进行了深入的研究.  相似文献   

10.
基于滥用的入侵检测方法分析与研究   总被引:1,自引:0,他引:1  
随着计算机网络的飞速发展,网络安全问题凸显,单纯使用防火墙技术不能满足人们对网络安全的要求。在层出不穷的黑客攻击中,内部攻击始终占据着多数,因此入侵检测方法引人注目。文章给出了滥用检测技术的原理及其图,深入分析、研究了滥用检测方法。  相似文献   

11.
The communication of people partially is the communication of cultures. Culture has a direct effect on international commercial activities in all aspects. Different conceptions about time, space, equality, law and the like, lead people to deal with things in different ways. So to know cultures of the counterpart is to facil-itate our enterprises so as to have a smooth and successful communication in commercial activity.  相似文献   

12.
风的曲线     
Rosco and I wait for the fishermen to return.I sit at a wooden bench near the store at Mt.Baker Resort and watch the clouds change shape. Rosco has my belt around his neck and an eight foot tow chain hooked to a tree. Dogs must be on a leash. Ducks and rabbits are loose.  相似文献   

13.
Given a graph G,a subgraph C is called a clique of G if C is a complete subgraph of G maximal under inclusion and |C|≥2. A clique-transversal set S of G is a set of vertices of G such that S meets all cliques of G. The clique-transversal number, denoted as TC (G), is the minimum cardinality of a clique-transversal set in G. The clique-graph of G, denoted as K (G), is the graph obtained by taking the cliques of G as vertices, and two vertices are adjacent if and only if the corresponding cliques in G have nonempty intersection. Let F be a class of graphs G such that F={G|K(G) is a tree}. In this paper the graphs in F having independent clique-transversal sets are shown and thus TC (G)/|G|≤1/2 for all G ∈ F.  相似文献   

14.
《海外英语》2007,(5):44-45
It is worthy of noting that, whilst Crookston Castle witnessed the earlier and happier portion of Mary's variegated life,  相似文献   

15.
Different nations have different social cultures, and the social culture of every nation is developing with the development of the nation, language is greatly influenced by social culture, which enables language to possess national and historical characteristics. Word is the smallest, independent, meaningful linguistic unit of language. It can well reflect the national and historical characteristics. From synchronic aspect, the social and cultural influence on word meaning is mainly embodied in conceptual and associative meanings of word. The incorrespondence of word meaning is a phenomenon that exists in both conceptual and associative meanings of word among different languages. From diachronic aspect, the development of social culture causes some changes of word meaning to some extent. Therefore, social culture plays a key role in vocabulary learning and mastery of a language.  相似文献   

16.
汉字倒说     
汉字的六书,《说文》对“转注”一类,语焉不详。后世学者提及转注,也仅限于许慎所举出的例字。《汉字例说》一文,作者从转注的角度综合考虑,对部分现代常用字作了分析,跟传统的解释有所不同。希望能抛砖引玉,互相切磋,以推进学术研究。  相似文献   

17.
《海外英语》2007,(4):36
There are numbers of crossroads on our long and unpredictable life journey where we totally have no idea about which direction to choose. No matter what our decision is, we should not turn back, but face the music and go ahead instead. I am this kind of girl who always does try without regretting, one example is how I dealt with my love.  相似文献   

18.
19.
王菲 《华章》2007,(12):273-273
Migration occurs behind a variety of reasons and has a great effect on the whole world. People may migrate in order to improve their economic situation, or in order to escape civil strife, persecution, and environmental disasters. The impact of migration is complex, bringing both benefits anddisadvantages. This paper briefly talks about the causes of migration, the allocation of benefits, and the ways in which individual countries and the international community deal with this important subject.  相似文献   

20.
This paper looks at the way drama works to bring a model of an arts curriculum into reality. He also shows how drama is valuable when discussed as a separate, autonomous subject in the school curriculum as opposed to one subsumed within English. He argues for a view of the arts and gives an example of a sequence of work in an English GCSE class based around Arthur Miller's play View from the Bridge. From this he draws out several strands about the relationship of the drama curriculum to the individual students and teachers, the school, and to culture. He also emphasises the primacy of performance in drama education.  相似文献   

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