CentOS7安装MySQL8

1、配置Mysql8安装源:

sudo rpm -Uvh https://dev.mysql.com/get/mysql80-community-release-el7-3.noarch.rpm

2、安装MySQL8服务

sudo yum --enablerepo=mysql80-community install mysql-community-server

3、启动mysql服务

sudo service mysqld start

4、查看mysql服务运行状态

service mysqld status

5、查看root临时密码

grep "A temporary password" /var/log/mysqld.log

root@localhost: &.+tkOufI6dM

6、更改临时密码

mysql -uroot -p

在Enter password：后面输入临时密码

ALTER USER 'root'@'localhost' IDENTIFIED BY '!QAZ2wsx';

7、当前的密码验证策略

SHOW VARIABLES LIKE 'validate_password.%';

8、配置远程访问
创建账号：

create user 'root'@'%' identified by '1qaz@WSX';

授予访问权限：

grant all privileges on *.* to 'root'@'%' with grant option;

刷新数据块：

FLUSH PRIVILEGES;

9、防火墙：
查看：

systemctl status firewalld.service 

关闭：

systemctl stop firewalld service

启动：

systemctl start firewalld service

开机禁止防火墙：

systemctl disable firewalld.service

开机启动防火墙：

systemctl enable firewalld.service