###centos7安装MySQL
wget http://dev.mysql.com/get/mysql-community-release-el7-5.noarch.rpm
rpm -ivh mysql-community-release-el7-5.noarch.rpm
yum install mysql-community-server
service mysqld restart
mysql -uroot -p
(输入密码)
mysql> set password for 'root'@'localhost' = password('admin');
####OK,搞定!!
####授权MySQL远程连接
GRANT ALL PRIVILEGES ON *.* TO 'root'@'%' IDENTIFIED BY 'admin' WITH GRANT OPTION;
FLUSH PRIVILEGES;
####如果还是无法连接,那么可能是防火墙的问题
service iptables stop
systemctl stop firewalld.service
####MySQL主从配置请参考