第一步:下载RPM包

wget http://repo.mysql.com/mysql57-community-release-el7-10.noarch.rpm

第二步:安装软件源

rpm  -Uvh mysql57-community-release-el7-10.noarch.rpm

第三步:安装服务端

yum install -y mysql-community-server

第四步:启动mysql

service mysqld start

systemctl start mysqld.service

第五步:查找默认密码

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

第六步:登陆并修改密码

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

密码过于简单:

(1),修改validate_password_policy参数的值

set global validate_password_policy=0;

(2),再修改密码的长度

set global validate_password_length=1;

(3),修改密码

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

第七步:授权其他机器登陆

GRANT ALL PRIVILEGES ON *.* TO 'root' @ '%' IDENTIFIED BY '数据库密码' WITH GRANT OPTION;

FLUSH PRIVILEGES;

第八步:数据库重启

service mysqld restart

systemctl restart mysqld.service