查询词典 network security

The network security is an affected area very widespread question, the topic research content: The network security rank, the data encryption technology, the firewall technology concept, the function, introduced the network security faces main threat as well as question countermeasure, and through the example some company network analysis situs chart from the analysis network security movement environment explained the example plan as well as supplements four safe disposition.

网络安全性是一个涉及面很广泛的问题，课题研究的内容：网络安全级别、数据加密技术、防火墙技术的概念、作用，介绍了网络安全面临的主要威胁以及问题的对策，并且通过实例某公司网络拓扑图从分析网络安全的运行环境来说明实例方案以及补充四点安全的配置。

In this paper, the concept of network security and security structures of OSI and Internet is introduced, and various threats confronting the computer network are also discussed. Several kinds of network information security technologies, including firewall technology, virtual private network, intrusion detection system, data encryption technology, identity authentication and security protocol etc. are also examined. The security of internal network is the biggest problem in the construction of each network. The solution to this problem lies in setting up a firewall. The theory of a firewall and the approach to its actualization is studied. Intrusion detection system, an important part of the computer network security system, has gained extensive attention. IDS monitors the computer and network traffic for intrusion and suspicious activities. It not only detects the intrusion from the extranet hacker, but also the intranet users. The emergence of virtual private network paves the way for realizing secure connection of LAN quickly and at a relatively low cost. The concept, function, key techniques, including the tunnel technology, and the ways to realize VPN are expounded in this paper. Also introduced is the data encrypt network technology, which is called the soul of computer network security, such as digital digest, digital signature, digital certificate, digital encrypt arithmetic and so on. At the same time, the principle and the process of implementing network security by digital certificate and digital signature, the basic principle and characters of security protocols, and finally, three of the security protocols, concerning the security problems in network, IPsec, SLL and SET are analyzed in detail Computer network system should be a system of dynamic defence, both dynamic and static, passive as well as active, and even offensive, combined with management and technology.

本文系统地介绍了网络安全的概念、OSI及Internet的安全体系结构，并讨论了计算机网络面临的各种安全威胁；内部网络的安全问题是每个建网单位面临的最大问题，可以认为防火墙技术是解决网络安全的一个主要手段，本文研究了防火墙的原理及其实现手段；作为一种主动的防御措施，入侵检测系统作为网络系统安全的重要组成部分，得到了广泛的重视，TDS对计算机和网络资源上的恶意使用行为进行识别和响应，不仅检测来自外部的入侵行为，也监督内部用户的未授权活动；虚拟专用网技术的出现，为实现网络间的连接提供了快速安全但又相对便宜的手段，本文较深入的探讨了实现VPN的隧道技术，并对VPN的概念、功能、实现途径、基本构成、关键技术及发展前景等问题进行了全面论述；数据加密技术是网络安全核心技术之一，本文从数据加密算法、数字摘要、数字签名及数字证书等几方面简要介绍了数据加密技术，并分析用数字证书和数字签名实现网络安全的原理和过程；对安全协议的基本原理、主要特点进行了较为深入的研究，并就网络的安全性问题剖析了三种安全协议：IPsec协议、SLL协议和SET协议。

Study how to make use of the safe technology of the network to structure the security system of campus network, Include security analysis of risk, requirement, strategy and target etc. Construct the multi-level, all-round campus security system with different defendable capabilities from network border safeguard layer, Intranet's safeguard layer, soft platform safeguard layer, safeguard layer of the information system. Emphasize that management is very importance to network security.

研究如何利用网络安全技术构建校园网安全体系，包括安全风险分析、安全需求分析、制定安全策略分析；从网络边界保护层、内网保护层、软平台保护层、信息系统保护层来构建多层次、全方位、多种防御手段的动态校园网络安全体系；强调管理在网络安全中的重要作用。

This topic is focus on building a safe, reliable, and fairly active defense capabilities campus network security model, by the security assessment, vulnerability scanning and other technical means, to reinforce the existing shortcomings and vulnerabilities of information systems, and to establish a strong defensing ability information system platform; useing related network security precautions technologies, to establish campus network security and prevention system, to fundamentally eliminate security threats from internal and external network.

本课题致力于构建一个安全、可靠、具有一定主动防御能力的校园网安全模型，通过安全评估、漏洞扫描等技术手段，对现有信息系统的缺陷、漏洞进行加固，建立具有较强防范能力的信息系统平台；利用网络安全防范的相关技术，建立校园网安全防范体系，从根本上解决来自网络内外部对网络安全造成的各种威胁。

As soft switching technology based on the choice of network NGN IP network as a bearer network,network security is particularly prominent. IP Internet must adopt appropriate security strategy to ensure that the soft switch network Security.

由于基于软交换技术的NGN网选择了IP网作为承载网，网络安全问题尤其突出，必须在IP网上采用合适的安全策略，以保证软交换网的网络安全。

Corporate Internet security engineering technical support, comprehensive network security solution development, implementation, responsible for provincial counseling station network security training, training across the province, city and county-wide network of teachers and other network security professional services.

承担企业上网工程安全保障技术支持、网络安全全面整体解决方案制定、实施、负责省级辅导站的网络安全培训、培训全省各地、市、县网络全教员等网络安全专业服务单位。

Dalian Meteorological Bureau;Dalian 116001Abstract In terms of advanced network security technology and equipment,how to rebuild the network system and to strengthen the network security was brought forward according to the existing problems and the hidden trouble of local network structure and network security in Dalian Meteorological Bureau.The network structure was replanned by subnet division technology.Multi-defensive lines were set up to prevent the potential internal and external attack.

根据安全网络的要求，利用先进的网络安全技术与设备，针对大连市气象局局域网在网络结构、网络安全方面存在的问题及隐患，提出网络系统改造方案及加强网络安全的措施：网络改造方案中采用子网划分技术重新规划网络结构，实现子网划分；针对可能存在的内、外部网络攻击，部署了多层次防线，对边界防毒和应用服务器防毒及客户端防毒均作了相应的部署。

ABSTRACT Computer network security deals with wide range. For the self-security of computer network information, the transmission security of computer network information and the information security of network host are studied.

计算机网络安全涉及的范围很广，本文从计算机网络信息的自身安全出发，研究了计算机网络信息的传输安全和网络主机的信息安全。

Software Description: About Infiltrator Network Security Scanner, Infiltrator is a network security scanner that can quickly audit your network computers for possiblevulnerabilities, exploits, and information enumerations.

Infiltrator Network Security Scanner Infiltrator 是一款网络安全扫描器，可以快速审查你的网络计算机以便发现可能存在的被利用的弱点，并且提供一个信息一览表。

At present, treatments at network security problem only some network security strengthen telecommunications of Kweichow IP network and network security the arrangements of products, Lack a piece of whole tactics of network security, can"t give play to the utility of the products of network security the best ."

目前，贵州电信IP网络在网络安全问题上的处理仅仅是局部的网络安全加固和部分网络安全产品的部署，缺乏一个整体的网络安全策略，不能将网络安全产品的效用发挥到最佳。

Neither the killing of Mr Zarqawi nor any breakthrough on the political front will stop the insurgency and the fratricidal murders in their tracks.

在对危险的南部地区访问时，他斥责什叶派民兵领导人对中央集权的挑衅行为。

In fact,I've got him on the satellite mobile right now.

实际上 我们已接通卫星可视电话了