Sajad habibi - Department of computer engineering, faculty of engineering, khayyam university, mashhad, iran
hossein riazi - Defense Engineer, Imam Ali University , Tehran, Iran
nikzad nazari - Defense Engineer, Imam Ali University , Tehran, Iran

With the rapid development of computer technology and network, the modern world is gradually evolved into an electronic world and all information is in the full digital. Especially in universities, the campus network has become an important infrastructure and it is used widely in teaching, office, library management, etc. With the development of the scale of campus network, the network environment is becoming more and more complicated. So network security plays a decisive role in ensuring the campus network operating stably and it has become one restricting factor in university information development. The paper researches and discusses some measures to help network management personnel to make scientific decision-making through analyzing various problems of college computer network and finding the inherent weaknesses of college computer network in order to provide a safe means of teaching and working environment for teachers and students.

university; computer network, computer technology, information loss