Wi-Fi

简单的网络通信，一个客户端，一个服务器端(winsock )

简易TCP通讯服务器端，QosClt为客户端。多个客户端间的通讯需要基于服务器，即通过服务器转发。(Simple TCP communication server, QosClt for the client. Communication between multiple clients need a server-based, that is transmitted through the server.)

TCP与UDP源代码测试程序，方便初学者观看，理解。用VC写的，容易读懂。。(TCP and UDP code for ABC to use)

局域网监控系统客户端程序，可以与服务器端的程序一起形成一个局域网监控系统。(juyuwang jiankong kehuduan)

说明：  务器端基于select I/O模型。为防止程序界面阻塞，有一个子线程用于不断接收socket并select其中的处理。客户端只有一个线程函数，不过其利用率很高，可用于远程目录交换，请求文件大小，创建若干线程来下载文件。文件传输有上传和下载,还有对等传输，这个项目中，传输文件具体指下载。(Client server based on select I/O model. Programming interfaces in order to prevent obstruction, there is a sub-thread for receiving socket and select which treatment. There is only one client thread function, but its utilization very high, can be used for remote directory exchange, request the file size, create a number of threads to download the file. File transfer are uploading and downloading, as well as peer-to-peer transmission, this project, the specific means to transfer files to download.)

更换ip，一键更换，可供研究，不喜勿喷，谢谢(Replace ip, a key replacement, available for study, do not like do not spray, thank you)

检测NAT类型的客户端，程序中指定了服务器IP地址，用户可以自行修改(Detect NAT type of the client, the program specifies the server IP address, the user can modify)

NAT(Network Address Translators)，网络地址转换：网络地址转换是在IP地址日益缺乏的情况下产生的，它的主要目的就是为了能够地址重用。NAT分为两大类，基本的NAT和NAPT(Network Address/Port Translator)。(The principle and implementation of UDP NAT through P2P )

利用Libnids开发包设计的检测攻击的源代码(use Libnids development kits designed detection of the source code attacks)

在visualstudio6下实现socket客户端和服务器端(In visualstudio6 to achieve client and server-side socket)