Network asset probing system is an important means of network security information collection. It can help to find out the family background

control security risks

and play an important role in security management. This paper first describes the key technologies involved in network asset probing

such as port scanning

fi ngerprint identifi cation

information collection and traffi c analysis

then introduces the implementation scheme and technical framework of the system

and fi nally focuses on the specifi c methods of the system in asset discovery and fi ngerprint identifi cation.