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Database security research aims to protect a database from unintended activities, such as authenticated misuse, malicious attacks. In recent years, surviving DBMS from an attack is becoming even more crucial because networks have become more open and the increasingly critical role that database servers are playing nowadays. Unlike the traditional database failure/attack recovery mechanisms, in this paper, we propose a light-weight dynamic Data Damage Tracking, Quarantine, and Recovery (DTQR) solution. We built the DTQR scheme into the kernel of PostgreSQL. We comprehensively study this approach from a few aspects (e.g., system overhead, impact of the intrusion detection system), and the experimental results demonstrated that our DTQR can sustain an excellent data service while healing the database server when it is under a malicious attack.
