是一款绝对经典、好用的BSD SOCKET 组播测试软件，内附具体使用说明。...

这个简单的例子实现两个网络的客户端（NAT后面）通过公共网络服务器，以帮助建立一个P2P connection.Then服务器必须有一个公网IP，和客户端支持NAT架构有限制，不是所有类型的支持，如对称型。

基于Socket类实现SMTP，POP邮件服务器的源代码-based on Socket class achieve SMTP and POP mail server source code

各种套接字接口函数都有其使用的上下文环境和参数规定。上下文环境由程序模式和程序流程决定；参数则有正确和错误之分。因此在根据错误提示信息解决错误时，应注意到这两种情况。-various socket interface function has its use in the context of environmental requirements and parameters. Environmental context by the procedures in decision processes and procedures; Parameters are right and wrong points. In accordance with the wrong message at the wrong solution, it should be noted that both cases.

改开发程序是基于java开发的客户端聊天程序,实现了多线程 -changed development process is based on java development of the client chat program, to achieve a multi-threaded

能使用TCP打洞的源程序，不是前面所说的是UDP打洞原理！-Can use TCP holes the source, not in front of talking about the principle of UDP holes!

tcpip协议在MCS-51上移植的C语言源代码-TCPIP agreement in MCS-51 on the transplantation of C language source code

本程序是用vb写的,代码很简练,带了几个类.已经基本实现局域网聊天的功能-this procedure is used vb written in the code is very concise, with a few categories. LAN has basic chat function

LINUX网口文件传输,分别运行SER.O和CLI.O 传输文件路径可自行修改 或作成读取配置文件的形式-LINUX network file transfer, and running SER.O CLI.O document transmission path may modify or make the reader configuration file forms

这是完整的一个C/S的客户服务端程序！但是我希望加点功能！请大家帮帮忙，“我要做的是客户端和服务器正常运行的情况下，如果网络断了，（比如说我把网络弄掉了，然后再接好）过了一会网络恢复正常，客户端能自动连接到服务器端，不能人工干涉！ 我查了一些资料，在VC里有一个函数OnTimer(nIDEvent)可以定时产生事件！可以实现这个功能，但是我用了，还是连不上，请大家帮帮忙吧！做好后给我发到我的邮箱里！谢谢！-This is a complete C/S programe,but I hope put more function into it.Please help me.Fllowing is I ll want to do.When client is communicating with server normally,the network link is down. After while the link recovery(ie,I take the cable out from the computer then plug it in.)The Client can reconnect the server automatically not redo by human.I study some reference information to do it.There is a function OnTimer(nIDEvent) in VC can send event message periodically.But I still can t reconnect.Please help me to do it and then mail to me. Thanks.

VC开发的全双工Socket通讯程序源码 -VC developed full-duplex communication procedures Socket source