host is not allowed to connect to this mysql server

1CREATE USER 'username'@'localhost' IDENTIFIED BY 'password';
2
3GRANT ALL PRIVILEGES ON *.* TO 'username'@'localhost' WITH GRANT OPTION;
4
5CREATE USER 'username'@'%' IDENTIFIED BY 'password';
6
7GRANT ALL PRIVILEGES ON *.* TO 'username'@'%' WITH GRANT OPTION;
8
9FLUSH PRIVILEGES;

1    mysql -u root -p
2    -- root password
3
4    CREATE USER 'username'@'localhost' IDENTIFIED BY 'password';
5
6    GRANT ALL PRIVILEGES ON *.* TO 'username'@'localhost' WITH GRANT OPTION;
7
8    CREATE USER 'username'@'%' IDENTIFIED BY 'password';
9
10    GRANT ALL PRIVILEGES ON *.* TO 'username'@'%' WITH GRANT OPTION;
11
12    FLUSH PRIVILEGES;
13
14    EXIT;

1GRANT ALL PRIVILEGES ON *.* TO root@my_ip IDENTIFIED BY ‘root_password‘ WITH GRANT OPTION;