使用 Mysql 的基本安全设置

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:

mysql> update mysql.user set password=password('password') where user='root';
mysql> flush privileges;

2.删除默认的数据库和用户 www.2cto.com

mysql> drop database test;
mysql> use mysql;
mysql> delete from db;
mysql> delete from user where not(host="localhost" and user="root");
mysql> flush privileges;

3. 更改默认root账号名称:

mysql> update mysql.user set user="admin" where user="root";
mysql> 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:

mysql> create database db1;
mysql> 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

mys

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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