Safe Management of the UNIX Network System

The UNIX system is a mature and commercial network operating system, which is applied broadly in finance, insurance, postal service, university etc. It possess abundant network functions inside, and has the good safety and stabilities. But the design of the UNIX system is according to a kind of system structure of open type, The system gathered correspondence service, there are some safety problem, The system also is subiect to the illegal entry easily. The article will take some discussion about the safe management problem in UNIX system.