Skip to main content

Getting started with S3 storage on RackCorp Hybrid Cloud - Windows & Mac

This document will cover the basics to get up and running to use RackCorp’s S3 storage service, including setting up access keys and secrets, creating buckets and transferring/manipulating your files via a number of third party client applications on Windows.

 There are several ways to host your files on RackCorp S3. This document focuses on Windows Clients but most applications are also available for Mac and Linux.

  • FTP style application (browser)
  • Mounted Drive Letter application (drive)
  • API access for modern web applications.

You are free to use a S3 compliant application of your choosing, although the following applications are validated with our service and for which we can provide limited support and assistance.




FileZilla Pro Payware

FileZilla Pro Payware

FileZilla Pro Payware

Cyberduck (Browser) Free 

Cyberduck (Browser) Free


Mountain Duck (Drive) Trial

Mountain Duck (Drive) Trial

CloudBerry MSP360 Explorer Free

Cloudberry MSP360 Explorer Free



TNT Drive Trial

Mountain Duck

Expan Drive

Expan Drive

S3Browser Freeware



  • S3 compatible object storage contains one or more storage buckets; each bucket contains a number of widgets.
  • Each widget has a unique ID.
  • Each widget has some meta data describing attributes of the object such as dates or revisions
  • Inside each widget is some data we want to access.
  • We are able to sort through the widgets that are in these buckets until we find the one we are looking for.

1. Create your S3 credentials in RackCorp Portal. 

The Storage tab in RackCorp Portal manages your CREDENTIALS and BUCKETS



Think of your access key as your username
Think of your ‘secret’ key as your password.

Once you have created or updated your key, a summary result is displayed. A progress spinner is displayed while your keys are generated and a green tick means they are ready to view.



Click on the access key to retrieve your access key and secret. This is a ONE-TIME PROCESS.


It is NOT retrievable.

You now have the three elements needed to securely access your files in RackCorp S3

  • Your endpoint URL: For some of our customers we will setup a custom URL, In this document we will use as an example.
  • Your ACCESS KEY : Retrievable from the portal
  • Your SECRET : A one-time code displayed in the portal

In RackCorp S3, there is a many to many relationships between access keys and buckets. This means all keys created under a customer can access all the buckets created under that customer.



For bucket names please use alphanumeric characters, dash and no spaces.

PUBLIC ENABLE  = No key is required to access the bucket.

PUBLIC DISABLE = Access key is required to access the bucket.


 We will demonstrate two types of windows applications as client examples for RackCorp S3. A ‘FTP’ style application and a drive-letter type app, where buckets are mounted as windows drive letters, allowing files to be natively accessed by windows applications without having to GET or PUT them from the S3 server first.

S3 Applications

FileZilla Pro Payware

Cyber Duck (Browser) Freeware

Mountain Duck (Drive) Trial

CloudBerry MSP360 Explorer Freeware

CloudBerry MSP360 Drive Trial

TNT Drive Trial

S3Browser Freeware



Expan Drive


These require your files to be downloaded to your computer and then uploaded back to the server when needed.

These types of clients are ideal for managing files that are not often edited and for which you may require additional features to manipulate your files and buckets.

Accounts -> Add New Account to setup your keys in the client


For ‘S3 Browser’, simply drag and drop your files between your PC and your bucket. 


We can see here that our credential has access to two buckets as that’s what we created in the portal.

3.1.2 Cloudberry Explorer for Windows

Please add a 'S3 Compatible' Connection


Choose your S3 Source either in the left or right pane of the application


These applications mount each bucket a driver letter in windows explorer, allowing you to manage your files as if they are native in your windows system. Downloads/uploads occur when you copy files to/from that particular drive letter/bucket.

These are better for managing large numbers of content rich files that would be edited by the end user such as photos text or video, and for those who would like ease of use.





We recommend Cyberduck for those who would like get/put style of application. 


We have tested and validated both Mountain   Duck (from the developer of Cyber Duck) as well as Cloud Mounter against MacOS Ventura. These S3 clients will give you folder/drive mount access for your S3 Buckets.

Mountain Duck

Please add a "amazon s3' type connection configurator, using the endpoint of your choice

Screenshot 2023-07-04 at 3.54.56 pm.png


Please update to the latest version For Ventura Support and follow the below settings example to setup Cloud Mounter.

Add a "amazon s3' connection and fill in the details per rackcorp portal. Substitute the Server Endpoint for the one of your choosing eg AU or AU-NSW or S3 regions s per our S3 settings page.

Screenshot 2023-07-04 at 3.54.14 pm.png

Screenshot 2023-07-04 at 3.54.14 pm.png

Expan Drive

For ExpanDrive please add a "Amazon S3" Connection

Screenshot 2023-07-05 at 3.41.51 pm (2).png

Screenshot 2023-07-05 at 3.44.04 pm.png

 This document is intended to get you up and running with the RackCorp S3 Storage service using popular Windows client applications.

To use advanced features like file versioning, encryption, Access Control Lists, cross-region replication, Transfer Acceleration, bucket logging and API access, please contact your account manager for additional information. These features may require specific settings or regions to work.


Document History:

008: Add Mac/Windows Expan Drive, Cloudberry for Windows

007: Added Mountain Duck and Cloud Mounter for Mac OSX Ventura

006: Added WinSCP and rclone

005: Multi Language support

004: Add support and usage guidance for Cyber Duck and Mountain Duck from iterate GmbH