systemctl stop firewalld
systemctl disable firewalld
setenforce 0
sed -i "s/SELINUX=enforcing/SELINUX=disabled/g" /etc/selinux/config

wget http://repo.mysql.com/mysql80-community-release-el7.rpm
rpm -ivh mysql80-community-release-el7.rpm

cd /etc/yum.repo
vi mysql-community.repo
gpgcheck=0

yum install mysql-server

systemctl start mysqld
systemctl status mysqld
systemctl enable mysqld

mysqld --initialize

#获取MySQL临时密码
grep 'temporary password' /var/log/mysqld.log

#修改MySQL密码<
alter user 'root'@'localhost' identified by 'P@ssw0rd';

use mysql;
#修改root账户权限
update user set host = '%' where user = 'root';

#刷新权限<br>flush privileges;