防火墙一般为低端程序 代码含金量很高，此为 防火墙的C语言的实现 供大家参考-firewall general low-end code for the high gold content, this firewall to the C language to achieve for your consideration

一个轻量级的nat穿越服务器端，源码质量很高，很适合学习编程，特别是编写网络程序的人学习。-a lightweight nat through the server, the source of high quality, very suitable for learning programming, Special procedures for the preparation of network learning from the people.

信息隐藏的一种算法,使用matlab实现.mycompress.m JPEG有损压缩 mycrop.m 剪切 myhighpass.m 高通滤波器 mylowpass.m 低通滤波器 mynoise.m 高斯，椒盐噪声 myresize.m 放缩 myrotate.m 旋转 mywiener.m 维纳滤波 myattack.m 以上所有攻击的集合-information hidden an algorithm, using Matlab to achieve. JPEG Compression

费尔防火墙1.0的源代码，具有很高有参考价值。-Fair Firewall 1.0 source code, there is a high reference value.