无法连接远程MYSQL服务器

Question

I have given all privileges to the root user, but I am unable to access remotely. I have given permission in firewall to access the port 3306 but I am unable to connect.

I am getting the error: your connection attempt failed for user 'root' from your host to server xxx.xxx.x.xx:3306

Answer 1

Look inside the my.cnf file for the bind address directive. This will tell mysql what IP to get access from.

# Instead of skip-networking the default is now to listen only on
# localhost which is more compatible and is not less secure.
bind-address            = 0.0.0.0

0.0.0.0 is there only to provide the most generic answer but for security reasons should be replaced by a specific address Please note that the safe way to do this is to specify only some specific IP and not use a wildcard for that. This way only trusted clients will be able to login.

NOTE: check if you granted to the user that will connect the permission on that IP (or from wildcard). If not you have to run these:

GRANT ALL privileges ON testDB.* TO 'testUSER'@'IP_Address' IDENTIFIED BY 'testPassword';
FLUSH PRIVILEGES;

Adapt these commands to your environment

Answer 2

Writing up this answer as you said my comment was the answer you needed.

Your root user is probably 'root'@'localhost' which means it will only accept logins from localhost. Create 'root'@'%' to allow logins from anywhere.

I recommend not using % unless you really lock down the permissions. Even better though, use 'root'@'YOUR IP HERE' !