Connect to a MySQL database remotely

In order to perform these steps, you must have local server access to log in as the root MySQL user.

Retrieve your IP address

You need to know the Internet Protocol (IP) address of the computer from which you’re connecting. You can retrieve this information by visiting one of the following sites:

Grant access

Perform the following steps to grant access to a user from a remote host:
  1. Log in to your MySQL server locally as the root user by using the following command:
     # mysql -u root -p
    You are prompted for your MySQL root password.
    Note: If you gain access to MySQL without entering a password, consider running the mysql_secure_installation script, which sets a MySQL root password and updates other settings to increase security. Microsoft SQL Server Managed Services can help you manage your SQL server instances.
  2. Use a GRANT command in the following format to enable access for the remote user. Ensure that you change 1.2.3.4 to the IP address that you obtained previously, and my_password to the password that you want fooUser to use:
     mysql> GRANT ALL ON fooDatabase.* TO fooUser@'1.2.3.4' IDENTIFIED BY 'my_password';
    This statement grants ALL permissions to the new user when the user connects from the specified IP address by using the specified password.

Test the connection remotely

To test the connection remotely, access the MySQL server from another Linux® server. The following example uses 44.55.66.77 as the IP address of the MySQL server:
# mysql -u fooUser -p -h 44.55.66.77
Enter password:
Welcome to the MySQL monitor. Commands end with ; or g.
Your MySQL connection id is 17
Server version: 5.0.45 Source distribution

Type 'help;' or 'h' for help. Type 'c' to clear the buffer.

mysql> _

Considerations

When you set up a remote user, consider the following information:
  • A local user is different from a remote user. For example, fooUser@localhost is not the same as fooUser@1.2.3.4. If you want both users to have the same permissions, you need to duplicate permissions.
  • We don’t recommend granting ALL permissions. For standard users, we recommend granting GRANT SELECT,INSERT,UPDATE,DELETE permissions.
  • To grant access to only a specific table, you can use the database.table command. For example, in the preceding step, you could use fooDatabase.fooTable instead of fooDatabase.
  • If you’re using iptables, you need to add an entry to your firewall rule for Transmission Control Protocol (TCP) port 3306. You can use the name mysql for the port number.

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