很好的远程操作系统探测工具，运用指纹识别技术，通过分析TCP/IP栈指纹来识别操作系统。-A very good tool for remote operating system detection, using fingerprint recognition technology, and by analyzing the TCP/IP stack fingerprinting to identify the operating system.

带指纹识别的考勤系统，360可以下载，这是源码-Time and attendance system with fingerprint recognition, 360 can be downloaded, which is the source