xprobe2
Remote active operating system fingerprinting tool
Xprobe2 uses advanced technics, such as the usage of fuzzy logic to match fingerprinting results with the tool's signature database, unique fingerprinting methods and other, to provide with accurate results. Xprobe2 has evolved from the original Xprobe tool, but it has been completely rewritten from scratch in C++.
There is no official package available for openSUSE Leap 15.6