无法使用IP地址连接mysql

Question

I try to connect my db using host address as my ip address 203.199.209.**,but not able to connect db.if i try to connect my db using host address as localhost it connected successfully. How to solve this issue?

Answer 1

MySQL grants access based on which host you are connecting from.

Run this command as root :

SELECT user, host FROM mysql.user;

These are the users which exist on your server. Notice the host column.

In short, a user is defined as both a user name ( user ) and a point of connection ( host ). When you access your server as localhost , you actually login as some_user@localhost . On the other hand, when you access the sever via its IP address, you actually login as some_user@your.ip.address.here . I guess the latter does not exist on your server.

You may want to create a new user such as some_user@your.ip.address.here or some_user@% (the percent sign is a wildcard; here, it means "any host"):

CREATE USER 'some_user'@'your.ip.address.here' IDENTIFIED BY 'your_password';
GRANT ALL ON your_database.* to 'some_user'@'your.ip.address.here';

If you wish to dig further, see this manual page for more details about MySQL access control, and this page for the CREATE USER syntax.

[edit]

Obviously, as suggested by others, you first need to make sure your server listens to this IP address (203.199.209.**). But if this were not already the case, you should get the following error:

ERROR 2003 (HY000): Can't connect to MySQL server on '203.199.209.**' (111)

The error you are getting definitely indicates a permission issue.

Answer 2

For mysql-5.7.15-winx64 (Windows Version), login as "root" user and run the following queries in MYSQL:

CREATE USER 'user'@'localhost' IDENTIFIED BY 'pass';

GRANT ALL PRIVILEGES ON *.* TO 'user'@'localhost' WITH GRANT OPTION;

CREATE USER 'user'@'%' IDENTIFIED BY 'pass';

GRANT ALL PRIVILEGES ON *.* TO 'user'@'%' WITH GRANT OPTION;

FLUSH PRIVILEGES;

and then Re-start your MYSQL DB.

For this version of MYSQL DB no changes are required in "my-default.ini" located in the same location as "bin" folder.