Yum方式安装mysql服务

步骤一:首先下载并安装mysql的yum源

wget http://dev.mysql.com/get/mysql57-community-release-el7-11.noarch.rpm
yum -y install mysql57-community-release-el7-11.noarch.rpm
yum -y install mysql-server --nogpgcheck

--nogpgcheck (不校验数字签名)

步骤二:启动mysql

systemctl start mysqld.service
systemctl status mysql.service

步骤三:修改密码

1. 查看临时密码

cat /var/log/mysqld.log| grep password

2. 使用临时密码进入

mysql -uroot -p

#输入临时密码进入,但是不能做任何操作,因为为了安全起见,需要马上立即修改临时密码。

3. 修改root密码,version-5.7要求必须首先修改密码,不修改其他所有的命令不可以使用。然后给其他机器授权能够访问mysql,立即刷新配置

ALTER USER USER() IDENTIFIED BY '123456Admin@123';
grant all privileges on *.* to 'root'@'%' identified by '123456Admin@123' with grant option;
flush privileges;

 

【降低mysql密码安全策略】

set global validate_password_policy=0;
set global validate_password_length=1;
flush privileges;

alter user 'root'@'localhost' identified by 'root';
grant all privileges on *.* to 'root'@'%' identified by 'root' with grant option;
flush privileges;

posted on 2023-01-05 11:31  仲达超  阅读(112)  评论(0编辑  收藏  举报

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