扫描器是网络信息收集的一种方法，从功能上可分为漏洞扫描和端口扫描。通过实验，掌握漏洞、端口的基础知识，掌握扫描器的基本原理并设计实现端口扫描和漏洞扫描程序。网络端口扫描器的工作原理是通过socket套接字对端口使用connect()进行连接，并记录目标主机给予的回答，搜集目标主机的各种有用信息。



程序采用MFC编程，为提高扫描速度，加入多线程支持。-Scanner is a network of information-gathering methods, from the functions can be divided into vulnerability scanning and port scanning. Through the experiment, have loopholes, port the basic knowledge to grasp the basic principles of scanners designed to achieve port scanning and vulnerability scanning procedures. Network port scanner working principle through socket socket on port use connect () to connect to, and record the target host to give the answer, the collection of target host a variety of useful information. Procedures for the use of MFC programming, to improve the scanning speed, by adding multi-threading support.