共查询到20条相似文献，搜索用时 703 毫秒
1.
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
2.
3.
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
4.
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
5.
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
6.
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
7.
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
8.
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
9.
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
10.
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
11.
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
12.
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
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.
15.
16.
《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
17.
陈美曦 《山东教育学院学报》2008,23(2):103-107
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
18.
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
20.
《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