数据帧的CRC校验和算法

网络蜘蛛，用于爬取指定网站内容，并下载到本地电脑上-Web spiders, for the climb to take the specified website content, and download to your local computer

该程序完全是为了演示HTTP的客户编写的，因此运行时必须在本机有开HTTP服务才行。-the program is to demonstrate the preparation of HTTP clients, and therefore must be run in the machine is open HTTP domestic demand.

网络编程课程设计。多线程对话工具小程序。客户端和服务端代码都包含。对网络编程初学者有较为实际的参考价值。程序还有较大完善空间，有待下载者们加强练习。希望对初学者们有一定的帮助哦！

java写的简易扣扣聊天，可多人聊天。

一个ftp端口扫描程序-an ftp port scanning procedures

计算机网络实验， 交换机与路由器的基本配置和使用-Experimental computer network, switches and routers and use the basic configuration

用C实现的Ping程序，实现的功能与Windows的Ping部分功能相同。可用于网络编程初学用-C realized Ping procedures, functions and the Windows Ping part of the same functions. Network programming can be used with learning

/* Here s a small IPv4 example: it asks for a portbase and a destination and starts sending packets to that destination. 这个IPv4版的例子：它要求portbase(本地端口)与destination （目的端口）然后发送消息 同时还监听消息。 例子测试一： 启动一个运行实例，本地地址与目标地址用同一个端口8888 例子测试二： 启动两个运行实例，本地地址与目标地址用不同的端口（它要求是偶数端口号） 两个实例互发 例子的中文解释都由hanyuejun添加，有任何疑问请发hanyuejun2006@163.com */-/* Here sa small IPv4 example: it asks for a portbase and a destination and starts sending packets to that destination. The IPv4 version of the example: It requires portbase (local port) and destination (destination port) and then send a message but also monitor the news . Examples of test 1: Start a running instance, a local address with the destination address port 8888 using the same test two examples: the two start to run instances, the local address and destination address with a different port (it requires the port number is even) two examples of inter- examples of explanation issued by the Chinese hanyuejun add, have any questi

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自己用libnids写的sniff，并把捕获分析的结果插入到mysql数据库中。与mysql的连接，以及操作是通过C语言实现的。希望大家共同进步。-Their use libnids written sniff, and to capture the results of the analysis into the mysql database. With the mysql connection, as well as the operation is achieved through the C language. Hope that we make progress together.