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Security in MySQL  /  ...  /  MySQL Enterprise Firewall Components

7.5.1 MySQL Enterprise Firewall Components

MySQL Enterprise Firewall is based on a plugin library that implements these components:

  • A server-side plugin named MYSQL_FIREWALL examines SQL statements before they execute and, based on its in-memory cache, renders a decision whether to execute or reject each statement.

  • Server-side plugins named MYSQL_FIREWALL_USERS and MYSQL_FIREWALL_WHITELIST implement INFORMATION_SCHEMA tables that provide views into the firewall data cache.

  • System tables named firewall_users and firewall_whitelist in the mysql database provide persistent storage of firewall data.

  • Stored procedures named sp_set_firewall_mode() and sp_reload_firewall_rules() perform tasks such as registering MySQL accounts with the firewall, establishing their operational mode, and managing transfer of firewall data between the cache and the underlying system tables.

  • A set of user-defined functions provides an SQL-level API for lower-level tasks such as synchronizing the cache with the underlying system tables.

  • System variables enable firewall configuration and status variables provide runtime operational information.


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