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1.设置或修改Mysql root密码:默认安装后空密码,以mysqladmin命令设置密码:
mysqladmin -uroot password "password"
Mysql命令设置密码:
mysql> set password for root@localhost=password('password);
更改密码:
update mysql.user set password=password('password') where user='root';
flush privileges;
2.删除默认的数据库和用户
drop database test;
use mysql;
delete from db;
delete from user where not(host="localhost" and user="root");
flush privileges;
3. 更改默认root账号名称:
update mysql.user set user="admin" where user="root";
flush privileges;
4. 本地文件安全:
set-variable=local-infile=0
5. 禁止远程连接mysql,远程管理可通过phpmyadmin,编辑my.cnf在[mysqld]添加:
skip-networking
6.最小权限用户:
create database db1;
grant select,insert,update,delete,create,drop privileges on database.* to user@localhost identified by 'passwd';
7. 限制普通用户浏览其它数据库,编辑my.cnf在[mysqld]添加:
--skip-show-database
8.快速修复MySQL数据库
修复数据库
mysqlcheck -A -o -r -p
修复指定的数据库
mysqlcheck -o -r database -p
9.跟据内存的大小选择MySQL的配置文件:
my-small.cnf # > my-medium.cnf # 32M - 64M
my-large.cnf # memory = 512M
my-huge.cnf # 1G-2G
my-innodb-heavy-4G.cnf # 4GB
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