Hello, today I'm very glad to explain for everybody on the network technology, with the opening up of the computer network technology, sharing and interconnection degree of expanding, network security has become an international problem, worldwide each year because of the computer network security system are destroyed and caused economic losses amounted to hundreds of billions of beauty with increasingly serious security threat, you need to use a more effective technology to deal with these problems, the intrusion detection system can provide help for us. Intrusion detection system as a kind of active safety technology, provides real-time protection, internal and external attacks before network system compromised to intercept and respond to invasion. With the safety of network communication technology demand is higher and higher, intrusion detection system can from Angle of three-dimensional depth, multi-level defence of network security to provide full service, has become the best choice at present. This article first introduces the general situation of intrusion detection, including its origin, classification system, related products, and analyzes its existing problems, made a brief overview about its developing tendency. Then in-depth Snort is studied in detail, including its characteristics, structure and testing process, etc., finally, describes how to configure Snort IDS installation on Windows,希望能够帮到你,谢谢,祝你好运,还望采纳!