> For the complete documentation index, see [llms.txt](https://docs.duplocloud.com/docs/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://docs.duplocloud.com/docs/automation-platform/overview/use-cases/hosts-vms/adding-dedicated-hosts.md). # Adding Dedicated Hosts Control placement of EC2 instances on a physical server with a Dedicated Host ## Adding Dedicated Hosts to launch EC2 instances Use Dedicated Hosts to launch Amazon EC2 instances and provide additional visibility and control over how EC2 instances are placed on a physical server; enabling you to use the same physical server, if needed. ### Prerequisites Configure the DuploCloud Portal to allow for the creation of Dedicated Hosts. 1. In the DuploCloud Portal, navigate to **Administrator** -> **System Settings**. 2. Click the **System Config** tab. 3. Click **Add**. The **Add Config** pane displays. 4. In the **Config Type** field, select **Flags**. 5. In the **Key** field, select **Allow Dedicated Host Sharing**. 6. In the **Value** field, select **true**. 7. Click **Submit**. The configuration is displayed in the **System Config** tab.

Add Config pane configured to Allow Dedicated Host Sharing

### Creating Dedicated Hosts to launch EC2 instances 1. In the DuploCloud Portal, navigate to **Cloud Services** -> **Hosts**. 2. In the EC2 tab, click **Add**. The **Add Host** page displays. 3. After completing the required fields to configure your Host, select **Advanced Options**. The advanced options display. 4. In the **Dedicated Host ID** field, enter the ID of the Dedicated Host. The ID is used to launch a specific instance on a Dedicated Host. See the screenshot below for an example. 5. Click **Add**. The Dedicated Host is displayed in the **EC2** tab.

EC2 page with Dedicated Host ID

### Viewing Dedicated Hosts to launch EC2 instances After you create Dedicated Hosts, view them by doing the following: 1. In the DuploCloud Portal, navigate to **Cloud Services** -> **Hosts**. 2. In the **EC2** tab, select the **Host** from the Name column. The **Dedicated Host ID** card on the Host page displays the ID of the Dedicated Host.

Dedicated Host ID card on the Host page displaying ID of the Dedicated Host

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