安装MySQL
安装mysql 5.7
在CentOS7上安装mysql
$ wget -ic http://dev.mysql.com/get/mysql57-community-release-el7-10.noarch.rpm
$ yum -y install mysql57-community-release-el7-10.noarch.rpm
$ yum -y install mysql-community-server
启动数据库服务
$ systemctl start mysqld.service
$ systemctl status mysqld.service
修改密码
查看安装时的临时密码
$ grep "password" /var/log/