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介绍PPPoE、Web/Portal、802.1x认证方式,分析各自的优缺点,提出适合多校区校园网的接入方式,即基于802.1x的认证方式。 相似文献
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IEEE 802.1x是目前校园网中应用非常广泛的基于端口的访问控制协议,它提供了一种对以太网进行基于端口的身份认证和授权的手段。本文分析了IEEE 802.1x协议定义的认证系统的工作机制,并探讨了运用IEEE 802.1x协议的客户端的系统的设计与实现。 相似文献
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设计一种基于Web Service和LDAP的分布式用户认证系统，解决校园网用户统身份认证问题。介绍系统的整体架构，重点描述两种Internet接入认证方式（网关与802.1x）通过Web Service实现的流程，介绍了分布式认证的处理方式以及其它网络应用系统调用Web Service的方法。 相似文献
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随着校园网规模逐步扩大,网络安全管理被提到重要日程,其中网络接入管理是必要环节。探讨使用RADIUS和扩展的802.1x或VPN的网络接入,并设计和实现基于统一身份认证方式的校园网AAA系统,介绍帐号管理、用户认证、用户授权、记帐管理、上网记录查询、IP管理、事件记录与查询等功能,介绍系统的设计和访问控制的实现,及安全分析。 相似文献
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基于802.1x认证的校园网安全管理应用 总被引：1，自引：0，他引：1
802.1x认证技术是一种基于端口的网络访问控制技术。由于它的简单、安全和使用方便,正受到越来越多的重视,目前在很多学校得到实际应用。本文围绕802.1x的认证原理及其技术优势并结合校园网络管理的特点进行了介绍,以便读者对802.1x认证技术有一个很好的了解。 相似文献
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随着高校校园网不断向学生宿舍延伸,校园网的“混合型”特征越来越突出,网络的“可运营、可管理”要求日益突出,这势必对用户认证技术提出更高的要求。本文分析了目前高校学生宿舍网的应用特点及其使用的主要认证、计费和管理技术,并根据自己的见解认为802.1x是最具前景的认证技术,同时提出了用统一的客户端和认证服务器软件平台解决802.1x认证中现存困难的技术方案。 相似文献
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张建卫 《济南教育学院学报》2014,(3):77-80
从校园网的发展及需求出发,介绍了当前学校基于IPv4无线校园网接入技术,依据IPv6的发展分析了IPv4环境下无线网实现双栈认证接入存在的问题,并主要从Web Portal及802.1X两方面就如何更好实现无线校园网IPv4、IPv6双栈接入做出进一步的研究和分析. 相似文献
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随着高校校园网不断向学生宿舍延伸，校园网的“混合型”特征越来越突出，网络的“可运营、可管理”要求日益突出，这势必对用户认证技术提出更高的要求。本文分析了目前高校学生宿舍网的应用特点及其使用的主要认证、计费和管理技术，并根据自己的见解认为802.1x是最具前景的认证技术，同时提出了用统一的客户端和认证服务器软件平台解决802.1x认证中现存困难的技术方案。 相似文献
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安全问题是影响无线网络发展的一个重要因素。IEEE802.1x协议的主要目的是解决无线局域网用户的接入认证问题。文章主要讨论了802.1x协议、EAP协议、PEAP协议。最后采用目前流行的一些免费软件,如MySQL,OpenSSL,FreeRadius等构建了一个简单、实效、可靠的基于802.1x/EAP-PEAP认证方案。 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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罗艳萍 《读与写:教育教学刊》2008,5(6)
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
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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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Richard Denner 《海外英语》2007,(4):14-15
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