The invention discloses a computer firewall device based on a
cloud database and a use method, and the method comprises the following steps: S1,
application protocol intelligent recognition control: automatically recognizing a DBA protocol, an operation and maintenance protocol,
hacker access and
application software, carrying out the comprehensive monitoring of all interface access of the
database, and achieving the effective
access control; S2, precise interception: performing blocking based on various conditions such as IP addresses, time, operations, keywords,
database accounts, statementlengths, column names, table names, line numbers and injection feature libraries, and precise
access control is realized; S3, APT
attack prevention: according to the combination of access behaviors, the
statistical model quickly verifies and blocks complex and continuous violation operation and malicious
attack behaviors; S4, built-in AI: a built-in intelligent learning module,
machine intelligentlearning, automatic modeling and automatic generation of a blocking rule base for actively defending unknown security threats; S5, bypass blocking.