shell> wget https://dev.mysql.com/get/Downloads/MySQL-5.7/mysql-5.7.18-1.el7.x86_64.rpm-bundle.tar
shell> tar xvf mysql-5.7.18-1.el7.x86_64.rpm-bundle.tar
shell> sudo yum install mysql-community-{server,client,common,libs}-*
shell> vi /etc/my.cnf
validate_password_policy=LOW
:wq
shell> sudo service mysqld start
shell> sudo grep ‘temporary password’ /var/log/mysqld.log
shell> mysql_secure_installation
shell> mysql -u root -p
