lancs

端口扫描器。 本扫描器实现了：TCP Connect 扫描，TCP SYN扫描，TCP Fin扫描，TCP ACK扫描及UDP端口扫描,这些扫描能够实现扫描特定IP地址范围内端口和扫描某IP地址范围内全部主机特定端口两种模式，并且SYN扫描能够区分端口开放、端口关闭和被防火墙过滤三种状态。(Port scanner. The scanner realized: TCP Connect Scan, TCP SYN Scan, TCP Fin Scan, TCP ACK scan and UDP port scan, the scan can scan a specific IP address range of ports and scanning a range of IP addresses all host two specific ports mode, and can distinguish SYN scan open ports, port closed and the three states firewall filters.)

一个有关获取主机名和IP地址的MFC程序，对于初学者来说很有帮助(For information about obtaining a host name and IP address of the MFC, very helpful for beginners)

Visual C++案例开发集锦第六章\端口扫描程序的程序源码,值得一看！(Visual C++ case development highlights Chapter program source port scanner, worth a visit!)

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....)

windows过滤驱动的示例代码，解析IP、TCP数据包，没有添加实际功能(Windows filter driver sample code, parsing IP, TCP data packets, did not add the actual function)

说明：  代理服务器，还不完善，总丢数据，个人没有能力改了，有需要的朋友参考一下吧(Proxy server, not perfect, the total lost data, individuals can not afford to change, and a friend in need reference it)

说明：  根据域名获得IP地址列表 根据域名获得IP地址列表(under the name list of IP addresses under the domain of IP address list)

利用socket编程实现数据的发送和接收(Use socket programming to send and receive data)

实现网络聊天功能的软件源代码。实现网络聊天功能的软件源代码(Realize network chat software source code. Realize network chat software source code)

VB利用winSocket写的IFTP网络数据传输(VB winSocket)