Network-transmission-

IPE打包机，可以讲IP流的数据包打包成TS流数据包(IPE balers, you can speak IP flow data is packaged into a TS stream packet)

程序时用循环进行一些数据的输入输出 以及数据的更新等操作(Program carried out with the cycle of some of the data input and output, and data updating operations)

对于网络开发包的详细解释，包括了libcap和libnid等(For a detailed explanation of the network development kit, including the libcap and libnid of)

说明：  VB 例程序讲解 、局域网聊天程序 二、可以换肤的窗体 三、richtext实现的文本编辑器 四、用OLE实现文件拖放 五、窗体卸载时弹出确认对话框 六、让控件大小随窗体改变而改变 七、拖动无标题栏窗体 八、在打开文件对话框中选择多文件 (VB procedures on cases, two LAN chat program, the Eurocargo Form 3, the realization richtext text editor 4, OLE files with drag-and-drop 5, Form unloading pop confirmation dialog box six, with the size controls Form change of seven, dragging Untitled Form 8 column, in fighting to open a file selection dialog many documents)

Simple employee information system program()

服务器，客户端聊天小程序，可能功能有点简单，但是原理都在(The server, the client chat applet)

Pop3客户端接收信件的整个流程： 1。连接到pop3服务器（默认端口110） 2。发送用户名（user） 3。发送密码（pass） 4。查询当前邮箱状态（stat） 5。查询服务器上所有邮件UID列表（UIDL） 6。查询本地所有邮件的UID列表，从而罗列出新邮件列表（本地UID列表是POP3客户端记录在日志文件中的） 7。对所有新邮件查询其大小（LIST） 8。下载所有新邮件（RETR）利用List提供的邮件大小信息 9。如果有必要，对所有新邮件标志为删除（DELE） 10。结束对话（QUIT） 11。解析本地下载邮件。(Pop3 client receives the entire flow of letters: 1. Connect to the pop3 server (default port 110) 2. Send user name (user) 3. Send password (pass) 4. Query current mail status (stat) 5. Query server UID list of all messages (UIDL) 6. Query local UID list of all messages, which set out the new mailing list (local UID is a POP3 client list recorded in the log file) 7. For all new e-mail inquiries about their size (LIST) 8. Download all new messages (RETR) to use List of information provided by message size 9. If necessary, for all new signs for the delete message (DELE) 10. The end of the dialogue (QUIT) 11. Analysis of local download your mail.)

SYN Flood是当前最盛行的DoS（拒尽服务进攻）与DDoS（散布式拒尽服务进攻）的方法之一，这是一种利用TCP协议缺点，发送大批伪造的TCP连接请求，从而使得被进攻方资源耗尽（CPU满负荷或内存不足）的进攻方法。(SYN Flood is one of the most popular DoS (refuse to do service attack) and DDoS (Distributed refuse to do service attack), which is a Use the TCP protocol shortcomings, sending a large number of forged TCP connection requests, making the offensive resource exhaustion (CPU full load or memory) Offensive....)

利用socket技术，实现了局域网之间的通信，两个客户端之间可以相互聊天(Socket technology, communication between the LAN between the two clients can chat with each other. )

一个很好的winsock tcp/ucp示例，相信看了肯定收益颇丰(a good example for winsock about tcp/udp)