Only with passive technology on network security

it is impossible to build a soundly secretive application. There are many disadvantages in practice. In order to set up a more firm security network

we must take advantage of active technology. This paper presents us how to build a security network system with active technology

make use of decoy sever to allure and track the attackers. In the procedure

a data analysis model is also brought out. It proves that the active technology is very helpful to forecast attack activities and promote network security with passive technology.