1、下载mysql官方yum repository

wget -i -c http://dev.mysql.com/get/mysql57-community-release-el7-10.noarch.rpm

2、安装yum repository

安装
yum -y install mysql57-community-release-el7-10.noarch.rpm

3、安装mysql服务

rpm —import https://repo.mysql.com/RPM-GPG-KEY-mysql-2022

yum -y install mysql-community-server

4、启动mysql

systemctl start mysqld.service

5、获取mysql随机密码

grep “password” /var/log/mysqld.log

6、连接数据库

mysql -u root -p

• 右键复制并粘贴的随机密码

  7、修改mysql密码规则

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

8、修改mysql密码

ALTER USER ‘root’@’localhost’ IDENTIFIED BY ‘fanmao888’;

9、允许远程用户连接

grant all privileges on . to ‘root’@’%’ identified by ‘fanmao888’ with grant option;

flush privileges;

• 断开mysql连接

exit;