The Application Study On The Design Of Network Security In Large And Medium Sized Enterprises

As the basis of information society, computer network is the important tool of our daily work, study and life. As the application of network is increased, people's requirements on the security of computer and network are more increasingly.This paper taking hebei province some enterprise of an internal network construction for example, emphatically resolve the security system design and product deployment issues. this system design is on "information security level protection" as the guiding ideology, taking the internal network security protection as the core target of enterprise, complementary network security hidden danger and risk analysis, and combining the risk and problems, the author puts forward "the preventing and measurement, control, administer and commentaries"security strategies, completed the network safe protection design and architecture realization of all safety system, it's obtained phased effect and achieved the desired goal of network security. Main results in this article are as follows:1. Relevant theories on information security protection level is applied in the design, planed security products in turn, comprehensively reduced security cost and risk and optimized resource allocation for information security.2. Equipment for firewall and detecting intrusion was strategically carried out in the gateway of the enterprise. In which not only can strengthen network security, but can effectively prevent accidences from network attack and virus infection.3. One invented net is established in internal network of the enterprise. It guaranteed transfer security through encrypting from net to net and visit control. 4. One effective internet connecting system is established for supervision and management of internet utilization to internal enterprise, to optimize network utilization and reduce risks from internal user.5. Virus intensively protection is realized in the network making use of joint strategy to combine hardware anti-virus products with anti-virus software of enterprise vision. Method effectivity mentioned in this article was identified by the network security protection practically realized.