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【速搜问答】防毒墙是什么

问答 admin 1年前 (2020-08-10) 267次浏览 已收录 0个评论

汉英对照:
Chinese-English Translation:

防毒墙是指位于网络入口处(网关),用于对网络传输中的病毒进行过滤的网络安全设备。防毒墙可以部署在企业局域网和互联网交界的地方,阻止病毒从互联网侵入内网。

Anti virus wall is a kind of network security equipment which is located at the entrance of the network (Gateway) and is used to filter the virus in the network transmission. The anti-virus wall can be deployed at the junction of the enterprise LAN and the Internet to prevent viruses from invading the intranet from the Internet.

人类步入了二十一世纪,信息产业飞速发展,互联网正在迅速地发展和普及。伴随而来的是计算机病毒的日益猖狂。尽管许多企业已经具有了一定的安全防范意识,并且部署了网络版杀毒软件和硬件防火墙,但是在面对诸如 SQLSlammer 等新的蠕虫病毒时,仍然显得力不从心。面对现今恶劣的互联网安全状况,只有强有力的防毒墙才能保障企业网络的安全。

With the rapid development of information industry and the rapid development of Internet, human beings have entered the 21st century. Accompanied by the computer virus is increasingly rampant. Although many enterprises have a certain sense of security, and deployed the network version of anti-virus software and hardware firewall, but in the face of new worms such as SQL rammer, it is still unable to cope. In the face of today’s harsh Internet security situation, only a strong anti-virus wall can guarantee the security of enterprise network.

防毒墙是指位于网络入口处(网关),用于对网络传输中的病毒进行过滤的网络安全设备。通俗的说,防毒墙可以部署在企业局域网和互联网交界的地方,阻止病毒从互联网侵入内网。凡是病毒都有一定的特征。防毒墙会扫描通过网关的数据包,然后对这些数据进行病毒扫描,如果是病毒,则将其清除。理论上讲,防毒墙可以阻止任何病毒从网关处侵入企业内部网络。

Anti virus wall is a kind of network security equipment which is located at the entrance of the network (Gateway) and is used to filter the virus in the network transmission. Generally speaking, the anti-virus wall can be deployed at the junction of the enterprise LAN and the Internet to prevent viruses from invading the intranet from the Internet. All viruses have certain characteristics. The anti-virus wall will scan the packets passing through the gateway, then scan the data for viruses, and clear them if they are viruses. In theory, the anti-virus wall can prevent any virus from entering the internal network of the enterprise from the gateway.

面临挑战

Facing challenges

根据国际著名病毒研究机构 ICSA(国际计算机安全联盟,International Computer Security Association)的统计,通过磁盘传播的病毒仅占 7%,剩下 93%的病毒来自网络,其中包括 Email、网页、QQ 和 MSN 等传播渠道。

According to the statistics of ICSA (International Computer Security Association), only 7% of viruses are transmitted through disks, and the remaining 93% come from the network, including email, web page, QQ and MSN.

公安部公共信息网络安全监察局发布的中国计算机病毒疫情调查技术分析报告显示,计算机通过光盘、磁盘等存储介质传播的比例明显下降,而通过网络下载和网络浏览感染病毒的数量增幅最大。通过电子邮件传播的比例也有所上升。计算机病毒网络化的趋势愈加明显,如何有效防御网络病毒是今后的防病毒工作的重要课题。

The technical analysis report on China’s computer virus epidemic situation investigation released by the public information and Network Security Supervision Bureau of the Ministry of public security shows that the proportion of computers spreading through CD-ROM, disk and other storage media has decreased significantly, while the number of virus infected through network downloading and browsing has increased the most. E-mail has also increased. The trend of computer virus networking is more and more obvious. How to effectively defend against network virus is an important task in the future.

国内防毒墙

Domestic anti poison wall

我国绝大多数企业都在采用网络版杀毒软件+防火墙的方式来保护企业的网络正常运行。

The vast majority of enterprises in China are using the network version of anti-virus software + firewall to protect the normal operation of the enterprise network.

网络版杀毒软件部署在企业网络内部,进行统一集中管理的一套杀毒软件。它可以对企业内部的病毒进行查杀,能够在一定程度上保证企业网络系统的安全,但仍然存在很大的局限性。

A set of antivirus software is deployed in the enterprise network. It can check and kill the virus inside the enterprise and ensure the security of the enterprise network system to a certain extent, but it still has great limitations.

首先,网络版杀毒软件安装在原有的操作系统之上,因此操作系统本身的稳定性以及是否存在漏洞都对网络版杀毒软件的使用产生一定的影响。其次,网络版杀毒软件虽然能够查杀病毒,但它并不能保证病毒从互联网进入局域网。

First of all, the network version of anti-virus software installed on the original operating system, so the stability of the operating system itself and whether there are loopholes have a certain impact on the use of network version of anti-virus software. Second, although the network version of anti-virus software can check and kill viruses, it can not guarantee that viruses enter the LAN from the Internet.

并且,越来越多的网络病毒开始利用操作系统的漏洞进行攻击和传播。从操作系统厂商发布漏洞补丁到利用这个漏洞进行传播的病毒出现的时间越来越短,病毒留给系统管理员进行系统修补的时间也越来越短。但是如果不及时修补操作系统的漏洞,这些利用漏洞传播的病毒就可以轻松绕过防病毒软件直接感染计算机,令杀毒软件的功效大大降低。如何能防止病毒进入内部网络已经成为各个企业网络安全所面临的首要问题。

Moreover, more and more network viruses begin to attack and spread by exploiting the vulnerability of operating system. From the vulnerability patch released by the operating system manufacturer to the emergence of the virus spreading through this vulnerability, the time for the system administrator to repair the system is also shorter and shorter. But if the operating system is not repaired in time, these viruses can easily bypass the anti-virus software and directly infect the computer, which greatly reduces the effectiveness of anti-virus software. How to prevent the virus from entering the internal network has become the primary problem faced by various enterprises.

很多企业已经逐渐意识到单单使用网络版杀毒软件进行防护是远远不够的,越来越多的企业已经开始采用硬件级防护产品与之配合,如:网络防火墙,入侵检测系统等等。然而对于病毒而言,这些防护产品是否能够真正有效地对网络病毒进行拦截呢?

Many enterprises have gradually realized that it is not enough to use network version antivirus software for protection. More and more enterprises have begun to use hardware level protection products to cooperate with it, such as network firewall, intrusion detection system and so on. However, for viruses, can these protection products really effectively intercept network viruses?

防火墙的局限性

Limitations of firewall

1、无法防范内部用户的攻击

1. Unable to guard against internal user attacks

2、无法防范不通过它的连接

2. There is no way to prevent connections that do not pass through it

3、限制了有用的网络访问

3. Limited useful network access

4、很难防范病毒

4. It’s hard to guard against viruses

5、不能防备新的网络安全问题

5. Unable to guard against new network security issues

6、不能防止数据驱动攻击

6. Data driven attacks cannot be prevented


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