This rar file contains 3 pdf which describs the firewall s A to z .

JAVA实现用户登录完整性验证-JAVA users logged integrity validation

教你如何配置安全的个人计算机-teach you how to configure the personal computer security

这是一个用于C或C++程序开发的内存防护系统，它可以有效的侦测到内存泄漏及内存读写异常的发生，并可以精确的指出发生问题的原因及相关的代码。相对与1.0版，2.1版本采用了全新的内核，应用了私有堆、虚拟内存、多线程存储等诸多技术，防护效果有了一个质的提升。YZ 编写，编译器：VC6。-for C or C program memory protection system, which can effectively detect memory leaks and memory reader unusual occurrence, and can accurately point out that the cause of the problem and the related code. Relatively with Version 1.0, version 2.1 of the new kernel, application of the private heap, virtual memory, multithreading and many other storage technologies, with a protective effect of quality improvement. YZ prepared compiler : VC6.

一个查看主板BIOS密码的程序-A view motherboard BIOS password procedures

这是关于计算机安全方面的一些资料，希望有人喜欢！-This is about some aspects of computer security information, want someone to love!

模仿360安全卫士的安全软件 完整源代码，学习用-360 security guards to imitate the security of software source code integrity, learning to use

这个程序实现了禁止关闭操作系统的功能,对于应用程序中需要此功能的有一定的参考价值-Realize this procedure prohibiting the closure of the operating system functions, for applications that need this feature has some reference value

用C语言实现的DES加密算法，简单高效，值得看看。-the DES implemented in C, simple and effected, worthy of look.

同学班级网站系统ASP程序-students classes web systems ASP Program

一个很好的系统备份工具-a good system backup tool