# CyberDuck S3 Client

Cyberduck is a cloud storage browser for Mac and Windows with support for ColdStack, FTP, SFTP, WebDAV, Amazon S3, OpenStack Swift, Backblaze B2, Microsoft Azure & OneDrive, Google Drive and Dropbox.

To download CyberDuck go to the official website: [https://cyberduck.io/](<https://cyberduck.io/ >)

### Setting up CyberDuck

Press the + button:

![](/files/-MiS6XppwkQ16y_DfpPM)

In the popup:

1. At the top select `Amazon S3`
2. In the  `Server`  section type `s3.coldstack.io` &#x20;
3. In the  `Port`  section type `443` &#x20;
4. Put in your `Access Key ID`  and  `Secret Access Key` &#x20;

![](/files/-MiVU70ZDJQPfjIAXZcM)

Then click on `Preferences` :

![](/files/-MiVaV1sPUMUTwK5RspF)

Then click on `Transfers` :

![](/files/-MiVaeEtgDpWKkz5Shyf)

And make sure that the `Segmented downloads with multiple connections per file` checkbox is turned off:

![](/files/-MiVaoBD-jUFxjEZibLJ)

Congrats! Now you are ready to use ColdStack! You will see a new connection. Click on it:

![](/files/-MiVUdFmiMHEwJ5gl3Kk)

It will open the list of your buckets:

![](/files/-MiVVAFHEiUenhrKmfEW)

Lets upload some files to ColdStack!

![](/files/-MiVVWdoYMguuc1Z-xBf)

![](/files/-MiVVu6t8zjSL1BpwhJ9)

![](/files/-MiVVwJg0BtaOEI3Okzv)


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# Agent Instructions: Querying This Documentation

If you need additional information that is not directly available in this page, you can query the documentation dynamically by asking a question.

Perform an HTTP GET request on the current page URL with the `ask` query parameter:

```
GET https://docs.coldstack.io/tools/supported-tools/cyberduck.md?ask=<question>
```

The question should be specific, self-contained, and written in natural language.
The response will contain a direct answer to the question and relevant excerpts and sources from the documentation.

Use this mechanism when the answer is not explicitly present in the current page, you need clarification or additional context, or you want to retrieve related documentation sections.