MySQL - Configure an Instance to Accept Incoming Connections – Articles

Learn how to configure your MySQL instance to accept incoming connections.

Managed Databases (also called Cloud Databases) allow you to focus on building and deploying cloud applications while OVHcloud takes care of the database infrastructure and maintenance in operational conditions.

Requirements

a Public Cloud project in your OVHcloud account
access to the OVHcloud Control Panel
a MySQL database running on your OVHcloud Cloud Databases (this guide can help you to meet this requirement)

Instructions

Configure your MySQL instance to accept incoming connections

Before making a connection, we need to verify that our MySQL instance is correctly configured.

Log in to your OVHcloud Control Panel and open your Public Cloud project. Click on Databases in the left-hand navigation bar under Databases & Analytics and select your MySQL instance.

Step 1: Verify your user roles and password

Select the Users tab. Verify that you have a user and a configured password. If you don't remember the user's password, you can either create a new user or regenerate the password of an existing user.

NOTE: Be careful! By doing so you will need to update all the places where you already use this user/password pair.

This first user avnadmin is pre-configured during the service installation and comes with the following grants:

GRANT SELECT, INSERT, UPDATE, DELETE, CREATE, DROP, RELOAD, PROCESS, REFERENCES, INDEX, ALTER, SHOW DATABASES, CREATE TEMPORARY TABLES, LOCK TABLES, EXECUTE, REPLICATION SLAVE, REPLICATION CLIENT, CREATE VIEW, SHOW VIEW, CREATE ROUTINE, ALTER ROUTINE, CREATE USER, EVENT, TRIGGER ON *.* TO "avnadmin"@"%" WITH GRANT OPTION

GRANT REPLICATION_APPLIER,ROLE_ADMIN ON *.* TO "avnadmin"@"%" WITH GRANT OPTION

You can add more users by clicking on the button + Add user.

Enter a username then click Create User →.

You can delete a user or regenerate a password via the more options ... button in the Users & Roles table.

Step 2: Authorize incoming connections from the MySQL client

For security reasons, the default network configuration doesn't allow any incoming connections. It is thus critical you authorize suitable IP addresses to successfully access your database.

In this step, select the Authorised IPs tab. IP addresses must be authorized here before they can connect to your database.

Clicking on + Add an IP address or IP block (CIDR) opens a new window in which you can add single IP addresses or blocks to allow access to the database.

You can edit and retract database access via the ... button in the IP table.

If you want to allow connections from the outside, you can enter the IP 0.0.0.0/0. Please use it carefully.

Collect required information

Select the General Information tab to find the required login credentials in the Login Information section.

Select the Databases tab to get the database name.

Select the Users tab to get the username.

You can delete a user or regenerate a password via the more options ... button in the Users & Roles table.

Go further

Visit the GitHub examples repository to find out how to connect to your database with several languages.

For more information and tutorials, please see our other Cloud Databases support guides or explore the guides for other OVHcloud products and services.

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