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  • 提高MySQL数据库的安全性

    1. 更改默认端口(默认3306)

      可以从一定程度上防止端口扫描工具的扫描

    2. 删除掉test数据库

    drop database test;

    3. 密码改的复杂些

    # 1 
    
    set password for root@localhost=password('test'); 
    
    # 2
    use mysql; 
    update user set password=password('test') where user='root'; 
    flush privileges; 


    4. 删除默认的用户

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


    5. 改变默认mysql管理员的名称

    use mysql;
    update user set user="admin" where user="root"; 
    flush privileges; 


    6. 禁止远程连接mysql
    a. 设置帐号不允许从远程登陆,只能在localhost

    use mysql; 
    update user set host = '%' where user = 'admin';
    select host, user from user; 

    b. 授权某个特定的用户可以从远程登录mysql
    (1) 设定任务主机,都可以根据某个用户名|密码,登录mysql服务的所有数据库

    grant all privileges on *.* to 'myuser'@'%' identified by 'mypassword' with grant option; 
    flush privileges;

    (2) 设定特定IP的主机,根据某个用户名|密码,登录mysql服务的所有数据库

    grant all privileges on *.* to 'myuser'@'192.168.1.3' identified by 'mypassword' with grant option; 
    flush privileges;

    (3) 设定特定IP的主机,根据用某个户名|密码,登录指定的数据库(dk--数据库名)

    grant all privileges on dk.* to 'myuser'@'192.168.1.3' identified by 'mypassword' with grant option; 
    flush privileges;
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  • 原文地址:https://www.cnblogs.com/zj0208/p/7682837.html
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