You can use access policy language to specify conditions when you grant permissions. You can use the optional Condition element, or Condition block, to specify conditions for when a policy is in effect.| docs.aws.amazon.com
The HEAD operation retrieves metadata from an object without returning the object itself. This operation is useful if you're interested only in an object's metadata.| docs.aws.amazon.com
Before you use IAM to manage access to Amazon S3, learn what IAM features are available to use with Amazon S3. Identity-based policies Yes Resource-based policies Yes Policy actions Yes Policy resources Yes Policy condition keys (service-specific)| docs.aws.amazon.com
How to authenticate requests and manage access to your Amazon S3 resources.| docs.aws.amazon.com
Learn about the AWS Identity and Access Management (IAM) policies and permissions that are available in Amazon S3.| docs.aws.amazon.com
You can use replication, delete markers, object lifecycle configurations, events, and notifications with Amazon S3 Object Lock.| docs.aws.amazon.com
Learn how to use access control lists (ACLs) to manage access to data in Amazon S3.| docs.aws.amazon.com