Abstract:

Chinese polar science database system is an open multi-database integration system with physical distribution and logical collection. Based on the system functions, it includes system management module, data input module and webs release module. Its characteristic lies in the construction of metadata and data set system. The database server system is built on UNIX platform, with hardware virus defense, preventing outside attacks, and with the backup strategy of copying all data completely. The security questions of web server include illegal visiting and virus prevention. As for system security strategy, it is proposed to track the development trend of backup technology, and to replace cassette backup with disk backup, copying all data automatically. In addition, the management of internal web, monitoring the internet state should be strengthened, in order to safeguard the data from internal web.