MySQL 8.0 Reference Manual Including MySQL NDB Cluster 8.0

6.4.2 The Connection-Control Plugins

MySQL Server includes a plugin library that enables administrators to introduce an increasing delay in server response to clients after a certain number of consecutive failed connection attempts. This capability provides a deterrent that slows down brute force attacks that attempt to access MySQL user accounts. The plugin library contains two plugins:

The following sections provide information about connection-control plugin installation and configuration. For information about the CONNECTION_CONTROL_FAILED_LOGIN_ATTEMPTS table, see Section 25.41.1, “The INFORMATION_SCHEMA CONNECTION_CONTROL_FAILED_LOGIN_ATTEMPTS Table”.