centos8下安装mysql

1.下载mysql源

wget https://dev.mysql.com/get/mysql80-community-release-el8-1.noarch.rpm

2.安装源

yum install -y mysql80-community-release-el8-1.noarch.rpm

3.检查源

yum repolist enabled | grep "mysql.*-community.*"

4.禁用CentOS8自带mysql模块

yum module disable -y mysql

5.安装mysql服务

yum install -y mysql-community-server

6.启动服务

systemctl start mysqld

7.查看服务状态

systemctl status mysqld

8.获取临时密码

grep 'temporary password' /var/log/mysqld.log

9.登录控制台

mysql -u root -p

password

10.重置密码

（大写字母、小写字母、数字、特殊字符）

ALTER USER 'root'@'localhost' IDENTIFIED BY 'NewPassword';

ALTER USER 'root'@'localhost' IDENTIFIED BY 'New_Password_123';

11.修改权限

use mysql;

update user set host='%' where user='root';

flush privileges;

12.创建用户

create user 'root'@'%' identified with mysql_native_password by 'NewPassword'; //1、先创建权限记录

或 create user 'root'@'%' identified by 'NewPassword';

grant all privileges on *.* to 'root'@'%' with grant option; //2、授权

flush privileges;