安装Mysql的命令：

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

安装完之后重启一下mysql服务：

 service mysqld restart

会输出：Redirecting to /bin/systemctl restart  mysqld.service

连接Mysql：

mysql

此时直接连接mysql即可，msyql默认密码为空，需要自己设置密码

设置Mysql密码：

set password for 'root'@'localhost' = password('xxx');

远程连接Mysql：

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

flush privileges;