查询词典 firewall

Around 85 percent of all incoming e-mail is blocked by my Barracuda Spam Firewall.

大约85%的来件被我的Barracuda Spam Firewall拦截。

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。

As the Internet network security protection software, FireWall has been widely used.

作为Internet网的安全性保护软件，FireWall已经得到广泛的应用。

Finally, the paper introduces the affect of the firewall in the safeness of the network, and the god point and the weak point of the firewall. It emphasizes the policy of firewall's project.

最后介绍了防火墙的在网络安全中所起的作用，以及防火墙的优点和不足之处；重点讲了防火墙技术的设计策略。

Software Description: Comodo Firewall is a personal firewall that filters ingoing and outgoing traffic on your computer.

Comodo Firewall 是一款可以过滤你的计算机上进入和发出传输数据的个人防火墙软件。

For the safety of LAN and using firewall thriftily,the authors analyze the architecture of Netfilter in Linux2.4 kernel.Then the authors implement the firewall system based on embedded Linux OS,which has basic functions as Package Filtration,URL filtration,NAT and log.And,the firewall system integrates with DMZ which establishes a buffer zone between Internet and Intranet to make the Intranet safer,and connection tracking which maintains a table for connection track in order to get the more safer than package filtration.

为了构建安全可靠的网络，同时降低使用防火墙的成本，对Linux2.4内核防火墙结构Netfilter的实现机制进行了深入的研究和分析，并利用该机制设计实现了一个嵌入式Linux防火墙系统，该防火墙实现完善了包过滤、URL过滤、NAT和日志等防火墙基本功能，同时集成了非军事区，为Internet和Intranet之间建立了缓冲地带，以保证Intranet的安全。

Clear the check box next to a rule name to turn it off if you do not want Outpost Firewall Pro to process the rule but you don't want to delete it.

如果您不希望Outpost Firewall Pro 处理该规则而又并不想删除它，清楚规则名前的复选框以关闭它。

Clear the check box next to the rule name to turn it off if you do not want Outpost Firewall Pro to process the rule but you don't want to delete it.

如果你不想Outpost Firewall Pro处理该规则且不想删除该规则，选择规则名前面的复选框以关闭规则。

As different programs access the Internet and interact with other software for the first time, Outpost Firewall Pro memorizes their identities and creates allowing rules for all the requested connections.

当不同的程序第一次接入网络或第一次与其他软件进行交互的时候，Outpost Firewall Pro 记住了它们的身份并为所有请求的连接创建了允许的规则。

Including the site Comodo Firewall,防火墻 to introduce information about the text, links and software to download screenshots.

包括本站 Comodo Firewall，防火墻介绍资料，说明文字，下载连接和软件截图。

It is also known as one of the most poisonous naturally occurring substances.

它也被称为一个最自然发生的有毒物质。

The greatest stress is found at the location on the cross section where V is the largest.

最大应力出现在横截面上V为最大的地方。