> ## Documentation Index
> Fetch the complete documentation index at: https://docs.prequel.co/llms.txt
> Use this file to discover all available pages before exploring further.

# Additional options

> Optional source connection configurations: SSH tunneling and staging buckets.

Configure optional connectivity and staging settings for your Prequel sources.

## SSH tunneling

Configure a bastion server to accept an SSH connection from Prequel.

<Columns cols={3}>
  <Card title="AWS SSH Tunneling" icon="aws" href="/export/sources/additional-options/ssh-tunneling" fill>
    Configure an AWS bastion server to accept an SSH connection from Prequel.
  </Card>

  <Card title="GCP SSH Tunneling" icon="google" href="/export/sources/additional-options/gcp-ssh-tunneling">
    Configure a GCP bastion server to accept an SSH connection from Prequel.
  </Card>

  <Card title="Azure SSH Tunneling" icon="microsoft" href="/export/sources/additional-options/azure-ssh-tunneling">
    Configure an Azure bastion server to accept an SSH connection from Prequel.
  </Card>
</Columns>

## Staging buckets

Set up a staging bucket for efficient data transfer.

| Option                              | Docs                                                                           |
| :---------------------------------- | :----------------------------------------------------------------------------- |
| S3 Staging Bucket                   | [link](/export/sources/additional-options/s3-staging-bucket)                   |
| Google Cloud Storage Staging Bucket | [link](/export/sources/additional-options/google-cloud-storage-staging-bucket) |
| Azure Blob Storage Staging Bucket   | [link](/export/sources/additional-options/azure-blob-storage-staging-bucket)   |

## Other options

| Option                           | Docs                                                                        |
| :------------------------------- | :-------------------------------------------------------------------------- |
| Databricks Service Principal PAT | [link](/export/sources/additional-options/databricks-service-principal-pat) |