单模匹配、多模匹配的若干算法，KMP、AC、BM、Wu

一个简单的防火墙程序- A simple firewall procedure

ip-filter不但具有SNAT、DNAT、端口映射、透明代理等已经成熟的功能，同时还实现了IPv4和IPv6协议以及IPSec安全协议的支持。此外还有诸如规则分组、blackhole、数据包捕获等特色-ip-filter not only had SNAT, DNAT, the port mapping, the transparent proxy and so on already the mature function, meanwhile has realized IPv4 and the IPv6 agreement as well as the IPSec security agreement support. In addition also has such as the rule grouping, blackhole, characteristic and so on data packet capture

天网防火墙,保证没毒-Skynet firewall to ensure that no drug

在Linux系统环境下进行包过滤的工具。可以根据不同的需要设置包过滤的规则。-in Linux environment for packet filtering tools. According to the need for different packet filtering rules.

不错的包过滤防火墙代码-good packet filtering firewall code

传输层的防火墙源码vc开发，编译通过可运行！-Transport layer firewall vc source development, the compiler can be run through!

FTP类，支持防火墙设置-FTP class support firewall settings

防火墙资源，文档说明具备相当价值-Firewall resources, document explains with considerable value

snort防火墙源代码，该防火墙据有很完善的功能。-snort firewall source code, the firewall has a very sound, according to function.

防火墙提供了内核模式的防火墙和 NAT 机制，这些机制可以通过用户模式运行的接口程序进行监视和控制。 防火墙规则可以使用 ipf(8) 工具来动态地设置和删除。 NAT 规则可以通过 ipnat(1) 工具来维护。 ipfstat(8) 工具则可以用来显示 IPFILTER 内核部分的统计数据。 最后， 使用 ipmon(8) 程序可以把 IPFILTER 的动作记录到系统日志文件中。 -Firewall provides a kernel-mode firewall and NAT mechanisms, these mechanisms can be run through the user-mode interface program to conduct surveillance and control. Firewall rules can use the ipf (8) tools to dynamically set up and delete. NAT rules can be adopted ipnat (1) tools to maintain. ipfstat (8) tools can be used to show the core part of IPFILTER statistics. Finally, the use of ipmon (8) program can record the movements IPFILTER to the system log file.