BackWPup 3.6.9 で以下のポリシー
{ "Version": "2012-10-17", "Statement": [ { "Action": [ "s3:AbortMultipartUpload", "s3:DeleteObject", "s3:GetBucketAcl", "s3:GetBucketLocation" "s3:GetObject", "s3:GetObjectAcl", "s3:ListBucket", "s3:ListBucketMultipartUploads", "s3:PutObject", "s3:PutObjectAcl", ], "Effect": "Allow", "Resource": [ "arn:aws:s3:::", "arn:aws:s3::: /*" ] } ] }
参考
BackWPup to S3 - IAM policy - Technology. Ish.
BackWpUpのS3ポリシー | ぴんくいろにっき
BackWPup: Amazon S3 Access Denied – Kelly Carter