I am updating Akeeba to use the new S3 upload instead of the S3 legacy method that I'm currently using on all my sites.
The first site I tried this on the backup initially failed to transfer to S3 because of the following message:
Amazon S3 returned an error message: 0 :: The authorization header is malformed; the region 'us-east-1' is wrong; expecting 'eu-west-1'
Failed to process file xxxxxx.20150625-075738.jpa
Post-processing interrupted -- no more files will be transferred
I managed to solve the issue by setting the Amazon S3 Region to the one I actually use. I found this a bit confusing, as the configuration screen specifically mentions not to use this field unless I use Signature method v2 or v3https, while I left this on the default v4.
(see attachment for screenprint)
I would just like to confirm that this is the way to go for my other 30 sites before I continue.