> For the complete documentation index, see [llms.txt](https://developer.harness.io/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://developer.harness.io/harness-platform/use-harness-platform/connectors/cloud-providers/pdc-connector.md).

# Add a Physical Data Center connector

You can connect Harness to the physical data centers (PDCs) where you will deploy your services.

PDCs are typically used in traditional deployments, including [Secure Shell (SSH)](/continuous-delivery/use-continuous-delivery/deploy-services-on-different-platforms/traditional/ssh-ng.md) and [WinRM](/continuous-delivery/use-continuous-delivery/deploy-services-on-different-platforms/traditional/win-rm-tutorial.md).

### Add a Physical Data Center connector <a href="#add-a-physical-data-center-connector" id="add-a-physical-data-center-connector"></a>

{% tabs %}
{% tab title="YAML" %}
Here's an example of a PDC connector YAML:

```yaml
connector:
  name: PDC-Connector
  identifier: PDCConnector
  description: ""
  orgIdentifier: default
  projectIdentifier: CD_Docs
  type: Pdc
  spec:
    hosts:
      - hostname: ec2-54-111-26-183.us-west-2.compute.amazonaws.com
      - hostname: ec2-54-222-142-249.us-west-2.compute.amazonaws.com
```

{% endtab %}

{% tab title="API" %}
Create the PDC connector using the [Create a Connector](https://apidocs.harness.io/tag/Connectors#operation/createConnector) API.

```yaml
curl --location --request POST 'https://app.harness.io/gateway/ng/api/connectors?accountIdentifier=123456' \
--header 'Content-Type: text/yaml' \
--header 'x-api-key: pat.123456.123456' \
--data-raw 'connector:
  name: PDC-Connector
  identifier: PDCConnector
  description: ""
  orgIdentifier: default
  projectIdentifier: CD_Docs
  type: Pdc
  spec:
    hosts:
      - hostname: ec2-54-111-26-183.us-west-2.compute.amazonaws.com
      - hostname: ec2-54-222-142-249.us-west-2.compute.amazonaws.com'
```

{% endtab %}

{% tab title="Harness Manager" %}

1. In your project, org, or account, select **Connectors**, and then select **New Connector**.
2. Select **Physical Data Center**.
3. Enter a name for the connector and select **Continue**.
4. Enter the target hosts manually or by using a JSON file. Both options are described in detail below.
5. Select **Continue**.
6. Select the Harness Delegate(s) you want to use to perform the connection, and then select **Save and Continue**.
   {% endtab %}
   {% endtabs %}

#### Manually enter hosts <a href="#manually-enter-hosts" id="manually-enter-hosts"></a>

To manually enter hosts in the connector, add each host's domain name or IP address on a new line.

#### JSON hosts file <a href="#json-hosts-file" id="json-hosts-file"></a>

Here's an example of a JSON hosts file:

```
[
    {
        "hostname": "ec2-54-87-11-191.compute-1.amazonaws.com:5986",
        "hostAttributes": {
            "type": "node",
            "region": "east",
            "name": "node1",
            "ip": "54.87.11.191"
        }
    },
    {
        "hostname": "ec2-3-83-219-167.compute-1.amazonaws.com:5986",
        "hostAttributes": {
            "type": "db",
            "region": "east",
            "name": "node2",
            "ip": "3.83.219.167"
        }
    }
]
```

JSON host file details:

* The `hostname` and `hostAttributes` properties are mandatory.
* The `hostAttributes` property can have as many key-value pairs as you need.
* When you select this PDC connector in an infrastructure definition, you can select **Filter by host name** or **Filter by host attributes** to select the host(s) for deployment.

  * Specify the host attributes as a comma-separated list of `attribute:value` (for example, `region:west,type:node`).

  ![filter by attributes](/files/BLNA0UtpwUPynHcjpI5d)