C＋＋ 编写的防火墙启驱动，方便支持二次开发

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！--Program which visit program outsides of firewall by sock5 proxy in server.IT emulates remote node by running server program. and firewall is needed when running the instance

非常优秀而且稳定的防火墙代码-Excellent and stable firewall code

费尔防火墙源代码,现在该代码所有公司已经开始收费；原先是公司内部交流拿来研究用的。-Fil firewall source code, the code is now all the companies have begun charging; Originally used to house the exchange of research.

在内核中建立Socket连接-establish the core Socket Connection

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

用VB写成的一个广告杀手程序,能够杀死网页上的弹出广告.可以设置广告黑名单.-written in VB with a killer advertising procedures, capable of killing on the website of pop-up ads. advertising can be blacklisted.

Firewall Log Daemon是一个用C编写的程序，它实时监视IP链或IP表日志警告。程序将启动一个小型后台监控进程，通过读取由系统日志写的FIFO来分析和解决防火墙日志。它可以查询一批警告，并将它们用邮件发送给你，或是由一个脚本用来处理现存的日志文件或数据流。它的功能有主机名，端口，协议，和ICMP类型/代码检查，可以由用户定义模板来格式化输出-Firewall Log daemon is a C preparation procedures, which real-time monitoring of IP or IP chain warned log table. Procedures will launch a small background monitoring process through the system log read from the FIFO write to analyze and solve firewall log. It can find a number of warnings, and use them to send mail to you, or from a script to handle the existing log file or data stream. It is the function of host name, port, protocol, and ICMP type/code inspection, by the user-defined templates to format output

Neo防火墙,不是很好，学习学习也不错。-Neo firewall is not very good, learn from is a good one.

一个VPN软件（freeswan）的源码可编译，有MakeFile文件 -A VPN software (freeswan) can compile the source code, Makefile document has

适用于Windows2000_XP操作系统的防火墙源代码-Applicable to Windows2000_XP firewall operating system source code