用于在局域网中检测运行嗅探器的主机，维护局域网安全的工具...

Internet 协议安全 (IPSec)-Internet Protocol Security (IPSec)

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.

该程序是实现一个小型的防火墙的设计。是基于包过滤技术的实现。-the program is a small firewall design. Is based on packet filtering technology.

一个网络安全测试工具 -A network security test tool

费尔个人防火墙 2.1 源程序 供大家学习 和参考-Fairbanks Personal Firewall 2.1 source code for the U.S. to study and reference

该程序透过服务器sock5代理访问防火墙外的程序，这里通过运行server程序来模拟远端。 不过该实例的运行需要有防火墙支持！-through the process server sock5 Acting visit outside the firewall procedures, here by running the server process to simulate remote. However, the example of the need to run a firewall support!

开发Windows 2000_XP下的防火墙!想搞防火墙的看看吧!里面写得真是不错!-2000_XP under Windows firewall! Wanting to look at the firewall! They write really good!

An Adventure How to implement a Firewall-Hook Driver

Winsock分层服务提供程序示例，包在文档中描述

tcp_wrappers_7.6 Unix下的防火墙源码-tcp_wrappers_7.6 Unix source firewa