# Service Nodes
# Add Service Nodes

After creating a listener, you can enable/disable, add, modify or delete service nodes of the listener according to your business needs at any time.

1. Log in to the ALB Console.
2. In the top navigation bar, select the region where your ALB instance is located.
3. On the ALB **Instances** page, find the target ALB instance and click the instance ID.
4. Click the **Listener Management** tab, select the target listener, and enter the listener details page.
5. Enter the "Real Server" tab and click "Add Real Server".

<!-- image-todo -->
![img](https://cdn.udelivrs.com/2025/04/91b131e32669c67141a5212d2832779c_1744358093761.png)<br>
6. On the adding page, configure the following information:

| Configuration | Description                                                      |
| :-------- | :------------------------------------------------------- |
| Resource Type | Select the resource type of backend nodes, supporting selection of cloud servers, physical cloud servers, virtual network cards, and private IPs. |
| Associated VPC      | The VPC where the backend nodes are located.                   |
| Associated Subnet   | The subnet where the backend nodes are located.                |
| Listener Port | The port to forward to.                                         |
| Optional Resources | Select the resource type that can be added.                    |

# Service Node Management

After creating a listener, you can enable/disable, add, modify, or delete the service nodes of the listener according to your business needs at any time.

1. Log in to the ALB Console.
2. In the top navigation bar, select the region where your ALB instance is located.
3. On the ALB **Instances** page, find the target ALB instance and click the instance ID.
4. Click the **Listener Management** tab, select the target listener, and enter the listener details page.

<!-- image-todo -->
![img](https://cdn.udelivrs.com/2025/04/fdaf69c6a009348d71cb317b068e541c_1744358093770.png)<br>
5. Click the "Real Server" tab.

Enable Nodes:
1. Select the nodes to be enabled, and then click "Enable" in the upper left corner of the list.
2. Find the service nodes to be enabled, click **Start** in the **Operation** column, and then click **OK** in the pop-up dialog.

Disable Nodes:
1. Select the nodes to be disabled, and click "Disable" in the upper left corner of the list.
2. Find the service nodes to be disabled, click **Disable** in the **Operation** column, and then click **OK** in the pop-up dialog.

Delete Nodes:
1. Select the nodes to be deleted, and click "Delete" in the upper left corner of the list.
2. Find the service nodes to be deleted, click **Delete** in the **Operation** column, and then click **OK** in the pop-up dialog.

Add Nodes:
1. Click "Add Node" in the upper left corner of the node list page.
2. On the adding page, select a node type according to the requirements, and then click "OK".