无法从主机虚拟机连接到 mysql

Question

$ mysql -u testuser -h 192.168.57.5 -p

Access denied for user 'root'@'192.168.57.1' (using password: YES)

On virtual guest i had already given permissions to mysql user with below command:

GRANT ALL ON DB.* TO root@192.168.57.5 IDENTIFIED BY 'password';

But above is not working.

Below Solution is working:

GRANT ALL ON DB.* TO root@192.168.57.1 IDENTIFIED BY 'password';

My Quetion is why i need to grant permissions to root@192.168.57.1?

My IP address of virtual machine is 192.168.57.5.

In MySQL Config:

bind-address = 192.168.57.5

I can access my virtual machine apache server with ip 192.168.57.5 and mysql server too with 192.168.57.5.

But i have to grant permissions to 192.168.57.1 in MySQL Server.

Answer 1

I'm sure this has been answered many times but here it goes one more time...

When you grant privileges, you grant them to the user that is connecting . What you are doing above is granting access to your MySQL server.

GRANT ALL ON DB.* TO root@192.168.57.5 IDENTIFIED BY 'password';

Means grant all to user root who's IP is 192.168.57.5

When you grant access to your client that wishes to use the server, it magically works.

Answer 2

In My vitual box:

Host Manager IP: 192.168.57.1 and

Client Machine IP : 192.168.57.5

In order to access MySQL from Client machine. I have to provide Grant permissions for Host Manager network IP address instead of virtual machine ip address.

That's why below works:

GRANT ALL ON DB.* TO root@192.168.57.1 IDENTIFIED BY 'password';