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rclone is a free tool for manging files and folders on cloud storage on Windows, macOS, linux and FreeBSD. This includes protocols including S3 compatible Object Storage.

Please follow the installation instruction like described on rclone. We generally recommend using the latest stable release from there and not installing rclone via your distro's package manager. E.g. the download/upload speed can suffer from older rclone versions.

All you will need is:

  • access_key
  • secret_key
  • Contabo's S3 URL

For access_key, secret_key and the S3 URL please check here.

Configuration for Contabo's S3 compatible Object Storage

Example values


  1. run rclone config
  2. specify n for n) New remote
  3. specify a name, e.g. eu2
  4. specify 5 for Amazon S3 Compliant Storage Providers including AWS, Alibaba, Ceph, Digital Ocean, Dreamhost, IBM COS, Minio, SeaweedFS, and Tencent COS
  5. specify 3 for Ceph Object Storage
  6. speficy 1 for Enter AWS credentials in the next step.
  7. specify your access_key, e.g. 82046e8110804a43bf29c1ae426a724d for access_key_id
  8. specify your secret_key, e.g. 82e69bd7a52076c527154297a76c2233 for secret_access_key
  9. press return to skip region
  10. specifiy the S3 URL, e.g. for endpoint
  11. press return to skip location_constraint
  12. press return to skil acl
  13. press return to skip server_side_encryption
  14. press return to skip sse_kms_key_id
  15. specify n for Edit advanced config
  16. specify y for Yes this is OK (default)
  17. optionally specify q to quit configuration mode

rclone config

type = s3
provider = Ceph
access_key_id = 82046e8110804a43bf29c1ae426a724d
secret_access_key = 82e69bd7a52076c527154297a76c2233
endpoint =


Please specify --s3-no-head when doing copies or synchronizations to avoid messages like corrupted on transfer: sizes differ xxx vs 0. Like the following:

rclone sync -P . eu2:bucketname/folder --s3-no-head