| Summary: | 碩士 === 大葉大學 === 資訊管理學系碩士在職專班 === 96 === With increasing popularity of network equipments, managers can log in the network management system remotely, monitor the states of equipments, and process alarm signal. For integration, many manufacturers jointly develop SNMP(Simple Network Management Protocol) to provide important network management functions, such as network monitoring. For example, HP OPENVIEW can find the cause of network failure rapidly, search new equipments, and help network managers design expanded functions for the network. However, previous SNMP messages are sent by the form of plaintext. These messages will be captured and decoded easily by programs such as Micorsoft Internet Monitor or Sniffer.
In addition, under the architecture of SNMP, there are some literatures to point that SNMPv3 can not resist DDoS (Dirtributed Denial of Service) attacks, and support web-based management seldomly. So, this article designs a system for preventing SNMPv3 from DDoS attacks, and combines the public key infrastructure and web-based management function, in order to solve the weaknesses of mechanisms of information security. In such a way, it provides useful suggestions for network managers.
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