[Yandex Cloud documentation](../../index.md) > [Yandex MetaData Hub](../index.md) > Connection Manager > Getting started

# Getting started with Connection Manager


Manage connections to PostgreSQL, MySQL®, ClickHouse®, Valkey™, Valkey™, OpenSearch, MongoDB, Trino, Apache Kafka®, and Yandex StoreDoc data sources using Yandex Connection Manager.

## Integrating with managed database services {#mdb-integration}

{% list tabs group=instructions %}

- Management console {#console}

  1. Create a [Managed Service for PostgreSQL](../../managed-postgresql/operations/cluster-create.md), a [Managed Service for MySQL®](../../managed-mysql/operations/cluster-create.md), and a [Managed Service for ClickHouse®](../../managed-clickhouse/operations/cluster-create.md) cluster. For new clusters, integration with Connection Manager will be enabled automatically.
  1. To enable Yandex Connection Manager integration with the existing managed database clusters, select **Use Connection Manager** in the advanced cluster settings. After saving the cluster settings, all its connections will be created automatically. You cannot disable this integration setting.
  1. To check an automatically created connection, go to [Connection Manager](https://console.yandex.cloud/link/metadata-hub/connection-manager) in the management console.

  In the connection list, you can view the connections created for your clusters and [configure access](../operations/connection-access.md) to them. In the list of connection [dependencies](../operations/view-connection.md#dependencies), you can view which managed database clusters are using this connection. Also, you can view the list of [operations](../operations/operation-connection.md) and their status for the connectioin you select.

{% endlist %}

## Managing database connections {#database-connections}

{% list tabs group=instructions %}

- Management console {#console}

  1. In the [management console](https://console.yandex.cloud), select the [folder](../../resource-manager/concepts/resources-hierarchy.md#folder) you want to create a connection in.
  1. [Navigate](../../console/operations/select-service.md#select-service) to **Yandex MetaData Hub**.
  1. In the left-hand panel, select ![image](../../_assets/console-icons/plug-connection.svg) **Connection manager**.
  1. Click **Create connection**.
  1. Enter a name and database type for the connection.
  1. Optionally, add a description and [label](../../resource-manager/concepts/labels.md) for the connection.
  1. Specify connection parameters depending on the selected database:
     * [Connecting to a managed database in a cluster](../operations/create-connection.md#mdb-connection)
     * [Connecting to a user database installation](../operations/create-connection.md#on-premise-connection)
  1. Specify the data required for connection authentication.

     {% note tip %}

     When creating a connection to a custom database installation intended for [Yandex DataLens](../../datalens/concepts/index.md), specify the host's external address.

     {% endnote %}
  
  1. Click **Create**.


{% endlist %}

Once you create a connection, you can [view its settings](../operations/update-connection.md#list-connections) in the connection list and [modify them](../operations/update-connection.md#update-connections), as well as view a list of [operations](../operations/operation-connection.md) for the selected connection and [manage access](../operations/connection-access.md) to that connection.


## What's next {#what-is-next}

* [View the connection information](../operations/view-connection.md).
* [Change connection settings](../operations/update-connection.md).
* [Configure connection access permissions](../operations/connection-access.md).
* [Delete the connection you no longer need](../operations/delete-connection.md).


_ClickHouse® is a registered trademark of [ClickHouse, Inc](https://clickhouse.com)._