监视端口和修改端口

SPY++ 7.1 繁体中文版本 用来监测视窗讯息与状况 对于了解视窗运作与 Windows Message 传递 非常有帮助-SPY 7.1 Traditional Chinese version of Windows messages used to monitor the status and understanding of the Windows operating with Windows Message transmission has been very helpful

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

DNS上主机查询, Unix She-Machine query on DNS, Unix She

C语言写的简单的端口扫描程序，内附源码，仅供学习-C language to write a simple port scanner, enclosing the source, for study

一个包含详细注释的、多线程的扫描器C源代码。-1 contains detailed notes, multithreaded C source code scanners.

网络安全扫描程序 -Scaner for network security

这个程序使用Borland C++编译，程序中关键代码是“my_addr.sin_port = htons(i)”，因为变量i是一个循环量，它从一开始到使用者设定值结束，而htons(i)则是对连接远程服务器需要使用的端口进行定义，之后使 用connect()函数连接指定端口，通过返回值判断这个端口是否打开，这样一个端口扫描的思路就出现了。 -This procedure using Borland C++ Compile, process the key code is

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)

portscan

本程序是有VC编写，其主要功能是扫描电脑端口的开放情况，有界面，可以扫描单一端口，也可以自定义端口，还可以将扫描的结果保存为文本文件-This procedure is the preparation of VC, and its main function is to scan your computer for open ports situation, there are interfaces, you can scan a single port, but also can customize the ports, can also be saved as a result of scanning a text file