Abstract: With the development of network communication technics,campus network in higher institute of learning plays more and more important role in teaching,researching and administrating.However,the openess,non-boundary and freedom of network make itself exit safety threat.So,the higher institute of learning should improve the manegement consciousness of network safety,enhance the technological manegement of network safety,amplify manegement system and workers of network safety,ensure the safety work of compus net...