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Connecting IONOS Cloud Object Storage

This guide walks you through connecting an IONOS Cloud Object Storage destination to Pluton.

Prerequisites​

Before connecting IONOS Cloud, you need:

  1. An IONOS account - Sign up here
  2. S3-compatible Object Storage credentials (Access Key and Secret Key)
  3. Your IONOS S3 endpoint

Getting Your IONOS Credentials​

Step 1: Access Object Storage​

  1. Log into the IONOS Cloud Panel
  2. Navigate to the Object Storage section
  3. If not already enabled, activate the Object Storage service

Step 2: Generate S3 Credentials​

  1. Go to Key Management in the Object Storage section
  2. Click Generate Key
  3. Copy the Access Key and Secret Key
  4. Important: Save these credentials securely — the Secret Key is shown only once

Step 3: Create a Bucket​

  1. In the Object Storage section, click Create Bucket
  2. Enter a unique bucket name
  3. Select a region (e.g., EU Central, US Central)
  4. Click Create

Connecting to Pluton​

Pluton IONOS Cloud

Step 1: Add Storage​

  1. In Pluton, navigate to Storages
  2. Click Add Storage button
  3. Select IONOS Cloud from the provider list

Step 2: Configure Connection​

Fill in the required fields:

  • Storage Name: A friendly name (e.g., "IONOS Cloud Backups")
  • Access Key ID: Your IONOS S3 Access Key
  • Secret Access Key: Your IONOS S3 Secret Key (password)
  • Endpoint: Select your IONOS endpoint (e.g., s3.eu-central-3.ionoscloud.com) or enter a custom one
  • Bucket Name: Your IONOS Bucket Name

Step 3: Advanced Options (Optional)​

Additional settings available:

  • Server-side Encryption: Choose AES256 or KMS encryption for data at rest
  • Storage Class: Select the storage tier for your objects
  • Chunk Size: Adjust the chunk size for multipart uploads (default: 5 MiB)
  • Upload Cutoff: Set the threshold for switching to chunked uploads (default: 200 MiB)
  • Force Path Style: Enable path-style access instead of virtual hosted-style

Step 4: Complete the Storage Setup​

  1. Click the Add Storage button which automatically verifies credentials and adds the storage.
  2. Your IONOS Cloud storage is now ready for backup plans

Common Issues​

Invalid Endpoint: Ensure you're using the correct IONOS S3 endpoint for your region. Common endpoints include s3.eu-central-3.ionoscloud.com and s3.eu-central-1.ionoscloud.com.

Access Denied: Verify your S3 credentials are correct and active. You can regenerate keys from the IONOS Cloud Panel under Key Management.

Bucket Not Found: Ensure the bucket exists in the region matching your selected endpoint. Bucket names must be globally unique within IONOS.

Best Practices​

  • Use IONOS data centers in your geographic region for compliance and performance
  • IONOS Cloud offers GDPR-compliant European data centers — ideal for EU-based organizations
  • Create separate buckets for different backup plans for easier management
  • Monitor storage consumption through the IONOS Cloud Panel to control costs