UDP-communication

VFP的相关代码demo，很好的东西,VFP的相关代码demo，很好的东西(very good demo code,very good demo code)

说明：  基于 异步选择模型的聊天程序，简单实现服务器和客户端的对话(Select model based on asynchronous chat program, simple implementation of server and client dialogue)

说明：  这是非常好的关于网络编程的例子，实现了ping程序，对于学习网络编程的人员来说是非常难得的材料。(It is a very good example of programming on the network to achieve the ping process, for learning network programming staff is very rare material.)

提供了各种拒绝服务攻击方式的算法，封装成了各种函数，调用很方便。(Offers a variety of denial of service attack algorithm, the package into various functions, call it convenient.)

socket服务器程序Demo。供socket开发人员参考。(socket server program Demo. Developer Reference for the socket.)

文件异步下载程序vb示例(document asynchronous sample download vb)

Wake On Lan 通过设置BIOS中的Wake ON LAN，可以通过局域网UDP广播，启动远程计算机。(Wake On Lan in the BIOS by setting Wake ON LAN, LAN UDP through radio, start the remote computer.)

端口扫描器。 本扫描器实现了：TCP Connect 扫描，TCP SYN扫描，TCP Fin扫描，TCP ACK扫描及UDP端口扫描,这些扫描能够实现扫描特定IP地址范围内端口和扫描某IP地址范围内全部主机特定端口两种模式，并且SYN扫描能够区分端口开放、端口关闭和被防火墙过滤三种状态。(Port scanner. The scanner realized: TCP Connect Scan, TCP SYN Scan, TCP Fin Scan, TCP ACK scan and UDP port scan, the scan can scan a specific IP address range of ports and scanning a range of IP addresses all host two specific ports mode, and can distinguish SYN scan open ports, port closed and the three states firewall filters.)

说明：  网络安全与密码学技术，用qt作为界面，利用md5算法实现的文件防篡改程序。(Network security and cryptography, using qt as an interface, use the file md5 algorithm tamper program.)

一个基于VC6.0 的简单ping程序 用于学习简单的网络编程(A the VC6.0 simple ping program for learning network programming)