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信息安全--防火墙的应用研究 总被引：1，自引：0，他引：1
本从信息安全的检测的角度论述了如何利用防火墙来达到维护网络安全的目的。在中，给出了防火墙的概念，以及常见三类防火墙技术：基于包过滤的防火墙、基于代理的防火墙和基于状态检测的防火墙等。详细描述了各类型防火墙主要技术特征，以及各种防火墙技术的优缺点并指出了今后防火墙的发展趋势。 相似文献
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状态检测技术在防火墙中的应用 总被引：1，自引：0，他引：1
魏利华 《邵阳学院学报(社会科学版)》2003,2(5):60-62
从防火墙概念及现有技术出发，探讨了状态检测技术产生的背景，分析了状态检测技术的原理、应用和性能，指出防火墙系统的发展趋势是在防火墙产品中综合利用多种防火墙技术，开发复合功能的防火墙系统． 相似文献
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本文主要研究计算机网络安全的防火墙技术.在这里,首先介绍了防火墙的概念以及它在网络中起到的作用,防火墙的三种基本类型:包过滤防火墙、代理服务器和状态监视器.最后,提出了防火墙的发展展望.总之,防火墙技术还处在一个发展阶段,仍有许多问题有待解决. 相似文献
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防火墙与入侵检测系统(IDS)联动,可以对网络进行动静结合的保护,对网络行为进行细颗粒的检查,并对网络内外两个部分都进行可靠管理。防火墙与日志分析系统联动,可以解决防火墙在大量日志数据的存储管理和数据分析上的不足。在网络安全体系中,防火墙是最重要的安全要素。同样,该系统模型以防火墙为联动中心。防火墙在安全防护中的地位决定了防火墙是一切安全联动技术的中心和基础。首先防火墙是网络安全最主要和最基本的基础设施。防火墙是保护网络安全的最重要技术,它是保护网络并连接网络到外部网的最有效方法。防火墙是网络安全防护体系… 相似文献
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本文从防火墙的分类及防火墙的选择标准两个方面,详细地论述了防火墙的主要技术特征和防火墙在现代计算机网络安全中的重要作用和应用. 相似文献
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从新的网络应用环境出发,指出了传统边界防火墙的缺点,分析最新防火墙技术--分布式防火墙,提出一种基于分布式防火墙的VPN网的组网方案. 相似文献
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防火墙是目前保护网络安全的有效手段.从技术和应用角度出发,论述了防火墙的基本概念、性能指标和分类特点,阐述了防火墙的基本功能和高级功能,分析了防火墙对在网络安全保护范围,提出了选用防火墙的具体建议. 相似文献
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《海外英语》2007,(5):10-11
Many college freshmen arrive woefully unprepared to do college work, and as disadvantaged populations continue to grow, the share of the American work force that has made it through college is expected to plummet. Many experts blame that educational failure not just on high schools but also on colleges. School & College, a special report by The Chronicle, looks at efforts to fix the system. What reforms would better prepare students for college? What should schools and colleges be doing differently? How should state and federal officials help? 相似文献
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邱崇丙 《唐山师范学院学报》2014,(1):21-23
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
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《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
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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
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Sister Carrie is one of the most controversial characters in American literature.Thought as a "fallen woman" firstly,she was defined as a "new woman" by some critics later. However, by digging into the motivaton behind the whole process of Carrie's "success", the relationship between Carrie and her creator (the author), the social conditions of then American, it can be found that Carrie has never been free-standing on her thought and she has never found her real-sdf even after becoming a famous actress. In a society dominated by mass consumerism Carrie is only an adherent of her own desires. She also is a representative of all those country girls flooded into cities, a symbol and a sacrifice of the urbanization of America in a time countryside was overcome by cities. 相似文献
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RUZBEHANI Mohsen 《重庆大学学报(英文版)》2004,3(1):20-25
1.IntroductionOne-cyclecontrolmethod,whichwasproposedaboutonedecadeago[1],hasbecomeanattractivemethodinspecialfieldssuchaspowerfactorcorrection[2-6],switchingamplifiers[7,8],etc.Themainideaofthiscontrollerisbasedonintegrationofdiodevoltageinone-cycleandforcesittobeexactlyequaltothereferencevalue.Themainadvantageofthiscontrollerisitsrealtimeabilitytorejectthevariationofinputvoltage[1].Despitethisgreatability,ithasnogoodperformancesinrejectingofloaddisturbanceandfollowingreferencecommands.Espec… 相似文献
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Rachel Zupek 《海外英语》2007,(11):40-41
我们绝大部分人都同意一件事情——我们喜欢金钱。但是你对金钱的喜欢之情足够到让你创立一份事业么?.财富通常被人忽视,主要在于人们不能真正了 相似文献