1.下载并安装MySQL官方的 Yum Repository
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
2.禁用默认的mysql模块
yum module disable mysql
3.安装MySQL服务器
yum -y install mysql-community-server
4.如果报错GPG检查失败
vim /etc/yum.repos.d/mysql-community.repo
进入文件后把所有的gpgcheck=1改成gpgcheck=0，禁用检查
5.启动mysql
service mysqld start
6.查出mysql密码
grep "password" /var/log/mysqld.log
7.登录mysql
mysql -uroot -p
然后输入密码，输入的密码是不可见的，输入后回车登录
8.修改mysql密码
ALTER USER 'root'@'localhost' IDENTIFIED BY 'new password';
new password是设置的新密码
9.开启mysql的远程访问
grant all privileges on *.* to 'root'@'192.168.0.1' identified by 'password' with grant option;
如果报错当前密码策略不符，将密码校验等级设置为低，或者更换更复杂的密码
set global validate_password_policy=LOW;
10.刷新mysql权限,然后退出
flush privileges;
exit;
