放大镜

通过微过滤器的方式实现的网络控制功能，简单实现了一下禁止当前机器断网的功能。(Through micro-filters to achieve the network control functions, simple look prohibit the machine off the network.)

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.)

说明：  mongoose v6.15，多线程http——server，线程数可设。从GitHub下载C语言原代码，在vc6里面编译成c++工程(multi-threads http_server, based on source code from Github. The project is conducted in VC6, converted from c language. The threads num can be edited in code.)

第1章实例01-简单网络聊天室.zip(Chapter 1 Examples 01- Simple network chat rooms. Zip)

可以根据输入的生成多项式计算CRC16的余式表，并输出到TXT文件中打开。附赠CRC16的查表程序和直接计算程序，供验证用。使用这段程序，可以完美解决CRC16的编程问题，CRC32以及CRC8也可以参考使用。(CRC16 remainder table according to the generator polynomial of the input and output to a TXT file to open. Comes with a CRC16 table look-up procedure and a direct calculation program, for verification purposes. This program can be the perfect solution the CRC16 programming problem, the CRC32 and CRC8 also be of use.)

本源碼是一個用從Internet的Web頁面上得到Email地址,采用多線程遞歸算法(This source code is a Web page is available from the Internet, get Email address, using a recursive algorithm for multi-threaded)

tcp/ip通信用VC++6.0开发的 基于三层结构(tcp/ip communication VC++ 6.0 developed based on the three-tier architecture)

通信网络的架设问题 若要在n（≥10）个城市之间建设通信网络，只需要架设n-1条线路即可(With the Dijksra algorithm to network G from source points to the rest of the vertices of the shortest path)

SCTP实验，实现客户端和服务器端传输数据(SCTP experiment, to achieve the client and server side data transfer)

一个完善的升级程序，可供编写自动升级程序模块参考。(A complete update program solution.)