Backups to AWS3 Just started failing

Backups to AWS Just started failing today has worked fine for ages message on all the hosts being backed up says:

Backup failed! See the progress output above for the reason why.

Creating backup for virtual server
Copying virtual server configuration …
… done

Backing up Cron jobs ..
.. none defined.

Saving mail aliases ..
.. done

Saving mail and FTP users ..
.. done

Backing up mail and FTP user Cron jobs ..
.. none to backup

Copying Apache virtual host configuration ..
.. done

Copying Apache log files ..
.. done

Copying Webalizer configuration files ..
.. done

Copying Logrotate configuration ..
.. done

Dumping MySQL database domain ..
.. done

Backing up Webmin ACL files ..
.. done

Backing up AWstats configuration file ..
.. done

Creating TAR file of home directory ..
.. done

Uploading archive to Amazon's S3 service ..
.. upload failed! Invalid HTTP response : HTTP/1.1 400 Bad Request

… completed in 6 minutes, 33 seconds

Any ideas?

Have you made any recent changes to the backup server or the AWS server?

Anyone been able to resolve this? I am getting the same error when backup is being uploaded to S3. Both S3 and Virtualmin are new.

I am also getting the following error.

The authorization mechanism you have provided is not supported. Please use AWS4-HMAC-SHA256

I wonder if this is the problem. How can I fix this?

Thanks, Eddie

I am seeing the same error … AWS credentials are ok and working when using another client. Did you find a solution ?
Thks. Pierre.

Hello DoubleSpeed,

Recently AWS has updated S3 framework,
Go to virualmin S3 backup option and chek the regions which it supports.