Next Previous Contents

1. 导言

最初的这篇“防火墙 - HOWTO”是David Rudderdrig@execpc.com的作品。他让我在他的原稿上增订内容,对此我深表感谢。 最近这一阵子, 防火墙(Firewall)成了网际网路的安全问题的热门话题。但像许多其他热门话题一样,这也同时造成了许多人对它的误解。这篇HOWTO 将会探讨什麽是防火墙?如何安装?何谓代理伺服器(Proxy Server)?如何设定代理伺服器?以及这些技术在安全领域以外的应用。

1.1 读者回应

如果发现这篇文章中有任何错误, 请务必通知我。人非圣贤, 孰能无过! 任何错误我都乐于更正。来信我都会设法回覆, 但我相当忙, 如果没有收到我的回信,还请包涵。回信地址markg@netplus.net

如果发现任何误译之处,请立即通知本文译者:赵平望(tchao@worldnet.att.net)。

1.2 严正声明

我不对任何依照本文所做行为造成的损害负任何责任(I AM NOT RESPONSIBLE FOR ANY DAMAGES INCURRED DUE TO ACTIONS TAKEN BASED ON THIS DOCUMENT) 。这篇文章只介绍防火墙和代理伺服器的作用。要知道,我不是电脑安全问题专家,也从来没有装成这方面的专家。我只是个喜欢读书,而且爱电脑胜过爱人类的家伙。我希望这篇文章能帮助你熟悉这个主题, 但不保证内容绝对无误。

1.3 版权宣告 (译注∶版权宣告不译)

Unless otherwise stated, Linux HOWTO documents are copyrighted by their respective authors. Linux HOWTO documents may be reproduced and distributed in whole or in part, in any medium physical or electronic, as long as this copyright notice is retained on all copies. Commercial redistribution is allowed and encouraged; however, the author would like to be notified of any such distributions.

All translations, derivative works, or aggregate works incorporating any Linux HOWTO documents must be covered under this copyright notice. That is, you may not produce a derivative work from a HOWTO and impose additional restrictions on its distribution. Exceptions to these rules may be granted under certain conditions; please contact the Linux HOWTO coordinator.

In short, we wish to promote dissemination of this information through as many channels as possible. However, we do wish to retain copyright on the HOWTO documents, and would like to be notified of any plans to redistribute the HOWTOs.

If you have any questions, please contact Mark Grennan at <markg@netplus.net>.

1.4 写这篇文章的动机

尽管去年在comp.os.linux上有许多关于防火墙问题的讨论,但我发现很难找到设定防火墙所需的资料。这篇HOWTO的原先版本提供了一些帮助,但内容仍嫌不足。我根据David Rudder编写的Firewall HOWTO作了增订,希望这篇文章提供了足够的资料,使你能在几小时内就能设定一个可以运作的防火墙,而不再需要花几星期之久。 我也认为我应该略尽绵力,回报爱好Linux的朋友。

1.5 有待完成的工作

1.6 延伸读物

在Trusted Information System (TIS) 网址上收集了许多有关防火墙的文件和相关材料。http://www.tis.com/

此外,我也正在从事一项称为Linux安全(Secure Linux)的项目。在Secure Linux网址上,我收集了所有使Linux安全可靠的资料、文件和程式。如果你需要这方面的资料,请来信索取。


Next Previous Contents