Abstract: In order to clarify the close relationship between network security and the informatization practice of gas enterprises,taking the informatization network security reinforcement of a gas company as an example,this paper introduces the establishment and practice process of network security reinforcement scheme. By deploying the next generation firewall,Internet behavior management and core switching equipment at the entrance and exit of the external network through the dual machine hot standby mode,installing EDR on the global network equipment,deploying the security situation awareness platform SIP and security latent threat probe STA in the core network,and adding the log audit system,the stable operation of the network is ensured,the hidden dangers of network security are eliminated,and the network status and security threats are monitored in real time,so as to achieve the purpose of all-round reinforcement of the network.

Key words: informatization of gas enterprises, network security, safety reinforcement