Linux IP包过滤器

一步 的,慢慢学,你就可以成为一名入门的红课,大家加油啊,努力学习!-it will tell you how to be a rudimental hacker ,if you read and learn step by step.Come on

防火墙是网络安全的关键技术,其核心思想是在不安全的网络环境中构造一个相对安全的子网环境.本文重点就网络安全论述了网络防火墙安全技术的分类及其主要技术特征、防火墙的安全功能、实现防火墙的主要技术手段、防火墙技术优点和缺点、防火墙发展的新技术趋势以及防火墙部署原则,并从防火墙部署的位置详细阐述了防火墙的选择标准.并就信息交换加密技术的分类加以分析,针对PKI技术这一信息安全核心技术,论述了其安全体系的构成. -A firewall is a key network security technologies, its core idea is the network in an unsafe environment to construct a relatively safe environment subnet. This paper focuses on network security firewall on the network security technology classification and its main technical features, firewall, security function, the realization of the main technical means of the firewall, firewall technology advantages and disadvantages, firewall development of new technology trends and the deployment of the principle of a firewall from a firewall in detail the location of the deployment of firewall selection criteria. and the exchange of information, the classification of encryption technology to analyze , PKI technology for the core of the information security technology, discusses the composition

支持HTTP/1.1、FTP、SSL、POP3、finger、plug、whois等多种协议的代理防火墙，用Python写成- Supports HTTP/1.1, FTP, SSL, POP3, finger, plug, whois and so on the many kinds of agreements proxy firewall, wrote with Python

这是加密文件或字符串的源代码.安全性还可以.大家可以看看.-This is the document or string encryption source code. Security can also. We can look at.

OPENVPN源代码，功能强大，在数据链路层做的-OPENVPN source code, powerful, the data link layer to do

可以穿越防火墙的语音-to pass through the firewall"s voice

des算法的实现-des Algorithm Implementation

jxta提供了你需要的技术来编写网络化的，互操作的P2P应用程序，可以容易地跨防火墙来动态发现网络上其它的对等成员，容易地跨网络和任何人共享文件，在你喜爱的站点发现每分钟更新的内容，创建一个对等成员组，成员可以容易地发现对方（在任何跨防火墙的设备上），远程监视成员的活动，在网络上和其它成员安全地通信。-jxta you need to provide the technology to prepare the network, peer-to-peer interoperability of applications, can easily cross-firewall to dynamically discover other network members such as the right, easily inter-network and any shared document, in your favorite site updates every minute found the content, the creation of a reciprocal membership, Members can easily find each other (in any cross-firewall equipment), the members of the long-range surveillance activities, on the Internet and other communications to the security of the members.

是一个利用ICMP协议进行通信的程序,为了能穿越防火墙,利用了ACK技术.-use ICMP is a protocol communications procedures, in order to cross the firewall, using the ACK technology.

查看收到的ICMP信息的工具 -A tool for viewing icmp message