一种ARP欺骗攻击综合检测防御系统

本文提出了通过分析路由器日志及ARP表的方法来检测并防御ARP欺骗攻击,该方法通过技术分析提取攻击者的MAC地址,然后利用SNMP协议读写网络设备的运行状态及相关信息,进而发现并定位ARP欺骗攻击源,然后采取关闭对应交换机端口的措施,测试证明该方法有效解决了网络中的ARP欺骗问题,减轻了网络管理者的负担。     

基于局域网ARP病毒攻击与防御措施的研究

ARP欺骗攻击是目前局域网络安全面对的一个主要问题,也是网络安全的一个重要研究内容,文中介绍了ARP协议的工作过程及ARP欺骗的原理,并分析了ARP病毒攻击的几种主要方式,通过对ARP攻击原理的分析,定位ARP攻击源头和病毒机理,讨论了现有防御方法存在的局限性,在现有的防御方法的基础上,提出几种有效的防御方法及解决方案,供相关工作参考。     

ARP 协议欺骗原理分析及防范措施

本文介绍了ARP协议的基本原理与基本工作过程,由于ARP协议自身存在的缺陷,成为木马病毒进行网络欺骗行为之一.通过分析木马病毒的ARP欺骗原理,查找被ARP欺骗源头主机,提出防范木马病毒的ARP欺骗攻击措施.     

ARP协议的攻击及防范措施的分析

该文介绍了ARP协议漏洞原理和机制,通过在实际网络管理中的工作经验并结合网络实际情况,提出了ARP攻击的解决方案及防范措施。     

ARP欺骗原理及一种防范算法

分析了ARP欺骗的基本原理和通过ARP欺骗进行攻击的常见方式;讨论了预防ARP欺骗的常见方法及其不足．针对ARP欺骗的“无状态”的特点,提出了一种防范ARP欺骗的算法,给ARP协议添加“先发送ARP请求,后接收ARP应答”的规则,可以有效避免ARP欺骗攻击的发生．算法适用于网络安全性要求较高的局域网．     

ARP协议欺骗原理分析与解决方案

随着网络的广泛应用,网络的安全问题变得越来越重要。网络安全问题有很多方面,其中欺骗类恶意攻击在网络安全问题中占相当一部分比重。本文主要通过分析ARP协议欺骗的工作原理,给出了同一网段和跨网段ARP协议欺骗的实现过程,并针对此类破坏,提出了双向绑定IP—MAC地址和软件防护的解决方案。     

基于以太网的ARP欺骗原理与防范措施

文章介绍了ARP协议的含义及ARP协议欺骗原理，分析了ARP欺骗攻击的形式，并提出了防范ARP欺骗攻击的一些措施。     

园区网中ARP欺骗防范设计与实现

ARP欺骗对园区网的正常使用造成了很大的影响,本文阐述了ARP欺骗的原理和常见的欺骗类型,并提出了解决方案。通过交换机的端口安全、ARP-Check等功能和GSN®机制防止ARP欺骗,实际应用效果良好。     

电子阅览室ARP欺骗的解析与解决策略

根据ARP协议工作原理分析了ARP协议的安全缺陷及ARP欺骗(ARP重定向),并提出电子阅览室ARP欺骗的解决策略。     

ARP欺骗分析及快速防御机制的建立

近年来ARP欺骗对校园网或企业内部局域网造成了巨大的安全威胁,由于ARP欺骗利用了ARP协议自身的缺陷,这也使得防御ARP欺骗更为棘手.通过对ARP协议分析及ARP欺骗分析,对比传统防御ARP欺骗的手段,提出了更为快速、高效、自动化的防御机制,并给出了此防御机制的模型以及技术实现要点.     

Markedness and its Interpretation in Language Use

Language markedness is a common phenomenon in languages, and is reflected from hearing, vision and sense, i.e. the variation in the three aspects such as phonology, morphology and semantics. This paper focuses on the interpretation of markedness in language use following the three perspectives, i.e. pragmatic interpretation, psychological interpretation and cognitive interpretation, with an aim to define the function of markedness.     

低渗透非均质砂岩油藏启动压力梯度研究

理论推导与室内实验相结合,建立了低渗透非均质砂岩油藏启动压力梯度确定方法。首先借助油藏流场与电场相似的原理,推导了非均质砂岩油藏启动压力梯度计算公式。其次基于稳定流实验方法,建立了非均质砂岩油藏启动压力梯度测试方法。结果表明:低渗透非均质砂岩油藏的启动压力梯度确定遵循两个等效原则。平面非均质油藏的启动压力梯度等于各级渗透率段的启动压力梯度关于长度的加权平均;纵向非均质油藏的启动压力梯度等于各渗透率层的启动压力梯度关于渗透率与渗流面积乘积的加权平均。研究成果可用于有效指导低渗透非均质砂岩油藏的合理井距确定,促进该类油藏的高效开发。     

On Tragic Consciousness In The Works By Ernest Hemingway

As an American modern novelist who were famous in the literary world, Hemingway was not a person who always followed the trend but a sharp observer. At the same time, he was a tragedy maestro, he paid great attention on existence, fate and end-result. The dramatis personae's tragedy of his works was an extreme limit by all means tragedy on the meaning of fearless challenge that failed. The beauty of tragedy was not produced on the destruction of life, but now this kind of value was in the impact activity. They performed for the reader about the tragedy on challenging for the limit and the death.     

Achieving Unusual States of Matter Under High Pressure

正The periodicity of the elements and the non-reactivity of the inner-shell electrons are two related principles of chemistry,rooted in the atomic shell structure.Within compounds,Group I elements,for example,invariably assume the+1 oxidation state,and their chemical properties differ completely from those of the p-block elements.These general rules govern our understanding of chemical structures and reactions.Using first principles calcula-     

Exchange-Correlation and Electronic Excitation Energies from Pairing Matrix Fluctuations

We have developed an adiabatic connection to formulate the ground-state exchange-correlation energy in terms of pairing matrix linear fluctuations.This formulation of the exchange-correlation energy opens a new channel for density functional approximations based on the many-body perturbation theory.We illustrate the potential of such approaches with an approximation based on the particle-particle Random Phase Approximation(pp-RPA).This re-     

Density Functional Theory for the Response of Periodic Systems to Electric Fields Based on the Vector Potential Approach

正The electronic and nuclear(structural/vibrational)response of 1D-3D nanoscale systems to electric fields gives rise to a host of optical,mechanical,spectral,etc.properties that are of high theoretical and applied interest.Due to the computational difficulty of treating such large systems it is convenient to model them as infinite and periodic(at least,in first approximation).The fundamental theoretical/computational problem in doing so is that     

On the Thermodynamic Limit for Responses to Static Electromagnetic Fields

For molecular systems,the quantum-mechanical treatment of their responses to static electromagnetic fields usually employs a scalar-potential treatment of the electric field and a vector-potential treatment of the magnetic field.Although the potential for each field separately is associated with the choice of an(unphysical)origin,the precise choice of the origin for the electrostatic field has little consequences for the results.This is different for the     

An affordable accurate evaluation of the binding conformations predicted by molecular docking studies in bio-system

Franck-Condon factors bridge the gap between theoretical modeling and experimental observations for molecular electronic spectroscopy and electron transfer.Under the displaced harmonic oscillator approximation,multidimensional Franck-Condon factors are decomposed into a product of many one-dimensional(1D)Franck-Condon(FC)factors,and each 1D-FC factor is associated with one Huang-Rhys factor that determines the leading contribution of     

Call for Papers

<正>"The Journal of Shanghai Normal University:Mathematics"is published by Shanghai Normal University as regular issues of The Journal of Shanghai Normal University each year from 2014 in English.The editors-in-chief of the issues are professors Yuhao Cong and Maoan Han.The Journal of Shanghai Normal University was started in 1958 with     

Journal of Donghua University ( English Edition) Contents of Volume 31

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