> For the complete documentation index, see [llms.txt](https://docs.verygoodsecurity.com/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://docs.verygoodsecurity.com/vault/batch-file-transmission/sftp-proxy/ftps-over-sftp.md).

# FTPS over SFTP

VGS allows to connect to FTPS upstream using SFTP as the connection interface. Since this is not a native protocol implementation, it has some requirements and limitations.

<figure><img src="/files/7uuyKjOpV7GWDZMkicCE" alt=""><figcaption></figcaption></figure>

## Upstream requirements

To establish such connections, your server must support:

* Passive connection mode
* TLS encryption
* User/Pass auth
* UTF8 encoding
* Binary transfer mode

## FTP commands

For proper cross-protocol work, each of those commands must be enabled on your server:

* Get current path: `PWD`
* Get file stats: `MLST`
* Upload file: `STOR`
* Download file: `RETR`
* List directory: `LIST`
* Create directory: `MKD`
* Remove file or directory: `DELE` `RMD`
* Rename file or directory: `RNFR` `RNTO`

> If the described above mapping schema doesn’t work for your case or you need a specific commands behavior, please contact our [Support](mailto:support@vgs.io). VGS can provide a flexible configuration for any custom scenario.


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