Cassandra - Configure an Instance to Accept Incoming Connections – Support Guides

Learn how to configure your Cassandra 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 Cassandra database running on your OVHcloud Managed Databases (this guide can help you to meet this requirement)

Instructions

Configure your Cassandra instance to accept incoming connections

Before making a connection, we need to verify that our Cassandra 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 and select your Cassandra instance.

Step 1: Verify your user roles and password

Select the Users tab. Verify that you have a user with 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.

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 Cassandra client

NOTE: 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.

DBaaS_cassandra_acceptconnections04**.png

Click Manage users → (or select the Users tab) to get the username.

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.