优秀的扫描工具，可以使用fingerprint来判断操作系统类型

VC开发的一个端口扫描程序，功能全面，使用方便，是扫描程序很好的例子。-development of a VC port scanning procedures, full-featured, easy to use, scanning procedure is a good example.

采用C++编程，端口扫描程序。简单易懂。-Using C++ Programming, port scanning procedures. Easy-to-read.

本实例是用一个树型控件动态的显示了所有流经本计算机的网络封包。-This example is the dynamic control with a tree display of all the computer network through the packet.

ftp扫描程序-ftp scaner

使用vc开发的端口扫描程序。-use vc development of the port scanning procedures.

用winsock编写的端口扫描器，支持多线程和两种扫描方式SYN和ping，附有详细文档.-with winsock prepared by the port scanners, support for multithreading and two SYN scanning and ping, with detailed documentation.

Java程序(检测局域网内是否有以下服务存在,Ms sqlserver/Norton 客户端)-Java program (LAN detection if there exist the following services, Ms SQLServer/Norton client)

大家好好用吧，这是一个非常好的工具啊。希望我门的网站越办越好啊-we use it properly, it is a very good tool ah. I hope the door for even better ah

操作系统提供的 connect() 系统调用，用来与每一个感兴趣的目标计算机的端口进行连接。如果端口处于侦听状态，那么connect()就能成功。否则，这个端口是不能用的，即没有提供服务。这个技术的一个最大的优点是，你不需要任何权限。系统中的任何用户都有权利使用这个调用。另一个好处就是速度。如果对每个目标端口以线性的方式，使用单独的connect()调用，那么将会花费相当长的时间，你可以通过同时打开多个套接字，从而加速扫描。使用非阻塞 I/O 允许你设置一个低的时间用尽周期，同时观察多个套接字。但这种方法的缺点是很容易被发觉，并且被过滤掉。目标计算机的logs文件会显示一连串的连接和连接是出错的服务消息，并且能很快的使它关闭。 -operating system for the connect () system call, and for every one interested in the computer connect to the port. If the interception at the state port, then connect () can be successful. Otherwise, the port is not used, that is, not provide services. One of the biggest advantages is that you do not have any authority. System of any user has the right to use this call. Another advantage is speed. If each of the target port to a linear manner, the use of separate connect () call, it would take a very long time, you can open multiple socket, thus speeding up the scanning. The use of non-blocking I/O allows you to set up a low exhaustion of the time cycle, while observing

kalman滤波实现目标跟踪 简洁明了-Kalman filter tracking concise