update

content/post/mysql.md

@@ -427,3 +427,26 @@ show global status where Variable_name in
                  lines terminated by '\n';
     ```
 
+## mysql8 配置登录失败 5 次锁定 5 分钟
+- 安装插件
+    ```
+    docker exec -ti mysql mysql -e "
+        install plugin CONNECTION_CONTROL soname 'connection_control.so';
+        install plugin CONNECTION_CONTROL_FAILED_LOGIN_ATTEMPTS soname 'connection_control.so';
+    "
+    ```
+
+- 查看插件列表
+    ```
+    docker exec -ti mysql mysql -e "show plugins"
+    # 此时会看到最后两行时新激活的插件
+    ```
+
+- 修改 my.cnf，增加两行
+    ```
+    connection-control-failed-connections-threshold=5
+    connection-control-min-connection-delay=300000
+    ```
+
+- 重启 mysql
+