监听与隐藏一书各章节的源代码。我将上传于此，对研究防火墙与网络通讯的朋友，或许有用。...

这是一个简单的路由跟踪工具，通过发送UDP包，使初始TTL值为一，即发送到第一个节点时终止，返回，之后再将TTL值++，收集每个返回的ICMP信息即可得到封包经过的路由。-This is a simple routing tracking tool, by sending a UDP packet, so that the initial TTL value of 1, that is sent to the first node the termination, return, and then after the TTL value of++, The collection of each returned ICMP Information can be obtained after the routing packets.

这是一个使用VC开发的简单的防火墙软件，很适合初学者学习-This is a development of the VC using simple firewall software is well-suited to beginners learning

一个Unix系统安全增强工具，Shell程序 -A Shell tool which can enhance Unix system security

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.

打造自己的驱动防火墙.搞安全的人用得着的,大家看看吧.-Create its own firewall driver. Engage in security of the useful, let us look at it.

本系统由服务器软件控制平台和fpga硬件处理系统组成，其中fpga硬件处理系统是整个系统的核心部分。系统管理员通过服务器的软件控制平台可以对fpga硬件处理系统进行即时的配置，fpga硬件处理系统按照系统管理员的配置进行工作，并会在检测到异常情况或者检测到用户敏感的流量或者数据包的时候通知服务器，服务器会向管理员发送通知。管理员可以在服务器软件平台上做进一步的分析处理。-The control system consists of server software platform and FPGA hardware processing system, of which FPGA hardware processing system is the core of the whole system. System administrator through the server software control platform FPGA hardware can perform real-time processing system configuration, fpga hardware processing system in accordance with the system administrator s configuration, and will be detected or the detection of anomalies to the user-sensitive traffic or packet when the notification server, the server will send a notification to the administrator. An administrator can in the server software platform for further analytical processing.

一个完整的网络防火墙产品源代码，只能作为学习使用。-a complete network firewall product source code, can only serve as learning to use.

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.

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

基于windows ndis的网关防火墙-based on the gateway firewall