yum 安装mysql8.0 配置数据库，导入数据库
sudo wget https://dev.mysql.com/get/mysql80-community-release-el7-3.noarch.rpm
sudo rpm -ivh mysql80-community-release-el7-3.noarch.rpm
sudo yum install --nogpgcheck mysql-community-server
sudo systemctl start mysqld
sudo grep 'temporary password' /var/log/mysqld.log
sudo mysql_secure_installation
mysql -uroot -p
use mysql;
#配置远程登录
CREATE USER 'root'@'%' IDENTIFIED BY '123456';
GRANT ALL ON *.* TO 'root'@'%';
ALTER USER 'root'@'%' IDENTIFIED WITH mysql_native_password BY '123456';
FLUSH PRIVILEGES;
scp db.tar.gz root@192.168.1.2:/home
tar -xzvf db.tar.gz
mysql -u root -p online-multi < db.sql
原文地址：https://blog.csdn.net/zwhfyy/article/details/143560088
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