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The AWS authentication can be either via access key or via IAM role.
AWS Credentials
Use this mode in case you have prepared a dedicated user in AWS and generated access key for it. How to do it
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A secret key that pairs with your Access Key ID for request authentication and authorization. This key should be generated when creating a new Access Key ID and kept confidential.
IAM role
Select this option if you have applied an IAM role to the source server. How to do it
AWS Backup Details
Backup Directory Name:
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