#下载
wget https://dev.mysql.com/get/mysql80-community-release-el8-1.noarch.rpm
#安装数据源
 yum install mysql80-community-release-el8-1.noarch.rpm
#检查数据源
yum repolist enabled | grep "mysql.*-community.*"
#禁用CentOS8自带mysql模块
yum module disable mysql
#安装数据库
yum install mysql-community-server
#启动mysql
service mysqld start
service mysqld status
#显示mysql的随机密码
grep 'temporary password' /var/log/mysqld.log
#登录mysql
mysql -u root -p
#修改密码
ALTER USER 'root'@'localhost' IDENTIFIED BY 'Test_123456';
#查看密码策略
SHOW VARIABLES LIKE 'validate_password%';
#开放远程访问
#1.创建权限用户记录
create user 'root'@'%' identified by 'Test_123456';
#2. 授权
grant all privileges on *.* to 'root'@'%' with grant option;
#开放3306端口