Forgot your password centos7 mysql5.7

Edit my.cnf file to allow an empty password

we /etc/my.cnf

In [mysqld] Insert: skip-grant-tables

[mysqld] 
datadir=/var/lib/mysql 
socket=/var/lib/mysql/mysql.sock
skip-grant-tables

 

Restart MySQL service

service mysqld restart

 

Log into the database using the mysql database, change the root password, exit the database

[root@localhost~]# mysql -u root
mysql> use mysql;
mysql> update user set authentication_string = password('m123'),password_last_changed=now() where user='root';
mysql> exit;

 

Open my.cnf again, the skip-grant-tables delete , save and exit

Mysql restart the service, you can use the database to reset the password

service mysqld restart