centos8安装mysql8.0

官网下载rpm地址

https://dev.mysql.com/downloads/repo/yum/

wget下载

wget https://repo.mysql.com//mysql80-community-release-el7-3.noarch.rpm

构建mysql源

rpm -ivh mysql80-community-release-el7-3.noarch.rpm

建立yum缓存

yum makecache

安装

yum install mysql-server

启动，查询状态，开机自启

systemctl start mysqld
systemctl status mysqld
systemctl enable mysqld

配置mysql(远程等等)

mysql安装默认没有密码

登录密码:
mysql -uroot -p

查询密码规则:
SHOW VARIABLES LIKE 'validate_password%';

降低密码规程:
先将密码安全等级设置为最低
set global validate_password_policy=0;--表示将密码安全等级设置为low
set global validate_password_length=6;--表示将密码长度设置为最小6位

修改密码:
ALTER USER 'root'@'localhost' IDENTIFIED WITH MYSQL_NATIVE_PASSWORD BY '密码';

开启远程访问:
CREATE USER 'root'@'%' IDENTIFIED WITH mysql_native_password  BY '密码';

GRANT ALL ON *.* TO 'root'@'%';

防火墙

临时关闭防火墙
systemctl stop firewalld.service
永久关闭防火墙
systemctl disable firewalld.service