用于嗅探网络数据报, 用于嗅探网络数据报

TCP文件传输协议的服务器端的实现（JAVA编写）-TCP File Transfer Protocol server-side to achieve the (JAVA prepared)

通过arp协议来发现局域网内的所有的当前活动的主机，编译本程序需要安装winpcap驱动以及其开发包，release之后仅仅需要安装winpcap的驱动就可以了-Arp agreement through the LAN to discover all the current activities of the host, the compiler of this procedure will need to install WinPcap driver as well as its development kit, release after only need to install the WinPcap driver can be a

使用select模型进行网络编程的例子，使用标准c编程，移植性能好，是最基本的网络模型-Select model using the example of network programming, using the standard c programming, transplant performance and is the most basic network model

程序说明: 1.程序采用网上介绍的方法实现最基本的P2P方式通讯.模拟实现即时消息互发. 2.P2P通讯说明: 1).网关类型是在理想状态下.即非对称型NAT. 2).同在一个内网的两个CLIENT端通讯时,如果网关NAT不支持环回,将会失败. 文件目录说明: tQServer:程序服务端,请将其放在公网上运行. tQClient:程序客户端,可以在不同的内网中运行登录连接到服务端. Common:公共协议文件夹 本程序只是实现简单的P2P互发消息.完成的比较粗糙,更多功能欢迎朋友们更新完善-procedures : 1. Online procedures introduced by the most basic method of peer-to-peer communication. Simulation made instant messaging each other. 2.P2P communications Note : 1). Gateway is the ideal type of state. That is non-symmetric NAT. 2). In the same period net CLIENT-2 communications, if not support NAT Gateway Circular, will fail. directory : tQServer :-service procedures, I would be grateful if the public on its Internet. tQClient : clients, in different operations within the network login to connect to the server. Common : Public the agreement folder procedure is a simple peer-to-peer updates. completion of the rougher, more functional friends welcome update perfect

使用手机发送段信的源码，包括串口操作和AT指令集。使用vb.net编写。-use the phone to send a letter of the source code, including the serial port operation and AT command set. Use vb.net prepared.

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是关于linux下socket通信的源代码，只要定义好服务器端、客户端的IP和端口号，就可以进行网络通信-under socket communications source code, as long as the definition of a good server. Client IP and port number, it can implement network communications

用java实现的Tftp(Sftp)客户端与服务器程序。在这个程序中用到了一个“状态”的机制：客户端与服务器端在开始运行时有相同的状态，通过用户的输入或程序内部运行的机制，程序可以转到不同的状态，在不同的状态下程序实现了不同的功能 -Using java realized Tftp (Sftp) client and server program. In this procedure used a state of the mechanism: client and server-side run-time in the beginning has the same state, through user input or program running internal mechanisms, procedures can be transferred to a different state, in a different state under the procedures realize the different functions

判断IP是否有效-To determine the validity of IP

利用NTP协议校准本地时钟，为控制台应用程序-This is a console programm that use NTP to adjust local time and date