> For the complete documentation index, see [llms.txt](https://docs.pentaho.com/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://docs.pentaho.com/pdc-10.2-data-optimizer/pdso-install-landing-page/pdso-install-in-hadoop-cluster/pdso-configure-data-storage-optimizer/pdso-configuration-parameters/pdso-settings-for-https-proxy-connections.md).

# Settings for HTTP/S Proxy Connections

In some cases, Data Optimizer is installed on a host that does not have direct access to the object storage service and must connect by a proxy. This is more likely to be the case when using a cloud storage provider such as Amazon Web Services. Using the settings in this section, you can configure Data Optimizer to use an http or https proxy. If a proxy is not required, leave these settings at their defaults.

| Parameter           | Description                                                                          |
| ------------------- | ------------------------------------------------------------------------------------ |
| **PROXY**           | The IP address or domain name of the http or https proxy server, if required.        |
| **PROXY\_PORT**     | The port that the proxy server listens on.                                           |
| **PROXY\_SCHEME**   | The scheme is either *http* or *https*, depending on what the proxy server supports. |
| **PROXY\_USER**     | The user for the proxy server, if authentication is required.                        |
| **PROXY\_PASSWORD** | The password for the proxy server, if authentication is required.                    |


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