Winsock layered service providers example, packets are described in documents

这是一个简单的防火墙，用VB开发的，功能很少，不过可以借鉴一下编程方法，很有用的-This is a simple firewall, using VB, functional little, but I can learn some lessons from programming, a very useful

数据包过滤防火墙-packet filtering firewall

windows下的防火墙，支持对协议，源/目的端口的过滤。可以设置阻止列表。-under the windows firewall, support for the agreement, the source/destination port of the filter. The list can be set to stop.

一个简单的个人防火墙的例子程序源码- A simple individual firewall example procedure source code

当要隐藏信息时,在MATLAB的命令窗内输入命令: hide = myhide(carry,signal,x,y)； carry 用你的原始载体文件名代替，signal 用你所要隐藏的文件名代替 carry 和 signal 都必须是 *.* 的形式（注意不能省略单引号） x,y 是选取隐藏信息的位置坐标，在（x,y）和（y,x）处 生成的伪装载体文件名为hide.bmp 注意myhide.m文件，载体文件，隐藏文件都要在当前目录(current Directory)下 当要提取信息时，在MATLAB命令窗内输入命令： behidden = myinhide(carry,x,y)； carry 用你的伪装载体文件名代替,格式为 *.* （注意不要丢掉单引号） x,y 是选取隐藏信息的位置坐标，在（x,y）和（y,x）处，这必须和嵌入时所选位置一致。 提取出的信息文件名为behidden.bmp 同样，要注意behidden.m和伪装载体文件都要在当前目录(current Directory)下-when to hide information, in order MATLAB within a window orders : hide = myhide (carry, signal, x, y); Carry with you the original document name instead vector, signal used to hide your name in the paper and instead carry signal must be in the form of*.* ( not to single quotes omitted) x, y is to select the location of hidden information coordinates (x, y) and (y, x) The formation of camouflage vector document, entitled hide.bmp attention myhide.m documents, vector documents hidden all the documents in the current directory (current Direct

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

ibdnet为几个低级网络例程提供了一个简化的接口在，包括网络地址处理，内核arp(4) 和 route(4)表处理，防火墙，接口配置，以及原始以太网和IP数据包传输。-ibdnet network of several low-level routines to provide a simplified interface, including network addresses, core arp (4) and route (4) Table processing, firewall, port configuration, and the original Ethernet and IP packet transmission.

费尔防火墙源码以及安装文件，不错，推荐一下给站长-Fairbanks firewall source code and installation file, it is true that you recommend to the head

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!

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