运行以下命令
wget -i -c http://dev.mysql.com/get/mysql57-community-release-el7-10.noarch.rpm; yum -y install mysql57-community-release-el7-10.noarch.rpm; yum -y install mysql-community-server; systemctl start mysqld.service; systemctl status mysqld.service; yum -y remove mysql57-community-release-el7-10.noarch; grep "password" /var/log/mysqld.log;
会生成一个root用户的随机密码
复制该密码，运行命令： mysql -u root -p “随机密码”;
连接上mysql, 设置密码策略
set global validate_password_policy=0;
将随机密码修改成自己定义的密码
ALTER USER 'root'@'localhost' IDENTIFIED BY '你想设置的密码';
对所有库授权，并刷新权限
grant all on *.* to '你创建的用户名'@'%'; flush privileges;
开放3306端口，重启防火墙
firewall-cmd --zone=public --add-port=3306/tcp --permanent firewall-cmd --reload
重启防火墙 --------------------- 本文来自 eagle-zhang 的CSDN 博客 ，全文地址请点击：https://blog.csdn.net/zhangxing52077/article/details/79288939?utm_source=copy