Analysis of Network Security in Electric Power Enterprise and Its Countermeasures

摘要

It analysed security status of information network in electric power enterprise and discussed security vulnerability in physical layer, network layer, management and system. Application of firewall and intrusion detection in network security of electric power enterprise is introduced. To overcome shortcomings of current security defence measures, a network security strategy based on intrusion tolerance technology is proposed and the key technology of designing intrusion tolerance system is analysed. It uses redundancy and diversity to construct more safe and reliable system. By fault detection, isolation and system recovery, it can mitigate or eliminate effect of intrusion to system and ensure safe and stable operation of electric power system.