grant remote access of MySQL database from any IP

Question

I am aware of this command:

GRANT ALL PRIVILEGES
ON database.*
TO 'user'@'yourremotehost'
IDENTIFIED BY 'newpassword';

But then it only allows me to grant a particular IP address to access this remote MySQL database. What if I want it so that any remote host can access this MySQL database? How do I do that? Basically I am making this database public so everyone can access it.

Answer 1

Config file changes are required to enable connections via localhost.

To connect through remote IPs, Login as a "root" user and run the below queries in mysql.

CREATE USER 'username'@'localhost' IDENTIFIED BY 'password';

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

CREATE USER 'username'@'%' IDENTIFIED BY 'password';

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

FLUSH PRIVILEGES;

This will create a new user that is accessible on localhost as well as from remote IPs.

Also comment the below line from your my.cnf file located in /etc/mysql/my.cnf

bind-address = 127.0.0.1

Restart your mysql using

sudo service mysql restart

Now you should be able to connect remotely to your mysql.

Answer 2

Run the following:

$ mysql -u root -p      
mysql> GRANT ALL ON *.* to root@'ipaddress' IDENTIFIED BY 'mysql root password';     
mysql> FLUSH PRIVILEGES;     
mysql> exit

Then attempt a connection from the IP address you specified:

mysql -h address-of-remove-server -u root -p   

You should be able to connect.

Answer 3

Assuming that the above step is completed and MySql port 3306 is free to be accessed remotely; Don't forget to bind the public ip address in the mysql config file.

For example on my ubuntu server:

#nano /etc/mysql/my.cnf

In the file, search for the [mysqld] section block and add the new bind address, in this example it is 192.168.0.116. It would look something like this

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

bind-address        = 127.0.0.1    
bind-address        = 192.168.0.116

.....    
......

you can remove th localhost(127.0.0.1) binding if you choose, but then you have to specifically give an IP address to access the server on the local machine.

Then the last step is to restart the MySql server (on ubuntu)

stop mysql

start mysql

or #/etc/init.d/mysql restart for other systems

Now the MySQL database can be accessed remotely by:

mysql -u username -h 192.168.0.116 -p

Answer 4

Open your mysql console and execute the following command (enter your database name,username and password):

GRANT ALL ON yourdatabasename.* TO admin@'%' IDENTIFIED BY 'yourRootPassword';

Then Execute:

FLUSH PRIVILEGES;

Open command line and open the file /etc/mysql/mysql.conf.d/mysqld.cnf using any editor with root privileges.

For example:

sudo nano /etc/mysql/mysql.conf.d/mysqld.cnf

Then comment out the below line:

bind-address = 127.0.0.1

Restart mysql to reflect the changes using command:

sudo service mysql restart

Enjoy ;)

Answer 5

TO 'user'@'%'

% is a wildcard - you can also do '%.domain.com' or '%.123.123.123' and things like that if you need.

Answer 6

You can slove the problem of MariaDB via this command:

Note:

GRANT ALL ON *.* to root@'%' IDENTIFIED BY 'mysql root password';

% is a wildcard. In this case, it refers to all IP addresses.