安裝完mysql數據庫後的優化（刪除多余用戶和數據庫）
阿新 • • 發佈：2017-06-21
優化
/* */ ~]# mysql -uadmin -p‘redhat12345‘
MariaDB [(none)]> user mysql；
MariaDB [mysql]> show tables;1、查看數據庫的版本信息：
MariaDB [(none)]> select version(); +----------------+ | version() | +----------------+ | 5.5.52-MariaDB | +----------------+ 1 row in set (0.18 sec)
2、刪除多余的賬號（除root和localhost的）
MariaDB [(none)]> use mysql MariaDB [mysql]> select user,host from mysql.user; +------+------------------------+ | user | host | +------+------------------------+ | root | 127.0.0.1 | | root | ::1 | | | localhost | | root | localhost | | | lvs-dr01.saltstack.com | | root | lvs-dr01.saltstack.com | +------+------------------------+ 6 rows in set (0.03 sec) MariaDB [mysql]> delete from mysql.user where (user,host) not in (select ‘root‘,‘localhost‘); Query OK, 5 rows affected (0.05 sec) MariaDB [mysql]> select user,host from mysql.user; +------+-----------+ | user | host | +------+-----------+ | root | localhost | +------+-----------+ 1 row in set (0.05 sec)
3、修改mysql默認的mysql管理賬號
修改默認的mysql管理賬號（root改為mysql，並設置新密碼為redhat12345）
MariaDB [mysql]> update mysql.user set user=‘admin‘,password=password(‘redhat12345‘); Query OK, 1 row affected (0.08 sec) Rows matched: 1 Changed: 1 Warnings: 0 MariaDB [mysql]> flush privileges; Query OK, 0 rows affected (0.03 sec) [[email protected]
繼續查詢：
MariaDB [mysql]> select user,host from mysql.user; +-------+-----------+ | user | host | +-------+-----------+ | admin | localhost | +-------+-----------+ 1 row in set (0.00 sec)
4、刪除test數據庫：
MariaDB [mysql]> drop database test; MariaDB [mysql]> flush privileges; MariaDB [(none)]> show databases; +--------------------+ | Database | +--------------------+ | information_schema | | mysql | | performance_schema | +--------------------+ 3 rows in set (0.06 sec)
到此，安裝完成後的基本優化已經完成
本文出自 “冰凍vs西瓜” 博客，請務必保留此出處http://molewan.blog.51cto.com/287340/1940496
安裝完mysql數據庫後的優化（刪除多余用戶和數據庫）