One, in the virtual machine operating
1, check the firewall status
Firewall - CMD - state

2, if it's running status, then close the firewall
Systemctl stop firewalld. Service

3, login mysql
Mysql -u root -p password

4, use mysql; Check the users table:
The SELECT ` Host `, ` User ` FROM the User;

5, update user table:
UPDATE the user SET ` Host `='%' WHERE ` user `='root' LIMIT 1;

6, forced to refresh the permissions:
Flush privileges;

7, exit
exit;

8, if appear, error number 2003 Cant connect to MySQL server on 192.168.125.128 10060
In a virtual machine 192.168.125.128, execute the following command:
Iptables -i INPUT -j ACCEPT -p TCP - 0/0 - dport 3306 s

Second, in the real machine
1, return to navicate, input current virtual machine IP address as the server
2, the mysql password, test the connection