yum -y install mysql-server

ps -ef | grep mysql

mysqladmin --version

systemctl enable mysqld

vi /etc/my.cnf.d

[mysqld]
lower_case_table_names=1

skip-name-resolve

systemctl start mysqld

mysql -uroot

use mysql;

alter user 'root'@'localhost' identified by 'root';

flush privileges;

exit;

mysql -uroot -p

use mysql

update user set host='%' where user='root';

flush privileges;

exit;

systemctl stop mysqld

systemctl restart mysqld