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PUT PublicAccessBlock
Description
This operation creates or modifies the PublicAccessBlock configuration for an
Amazon S3 bucket. In order to use this operation, you must have the
s3:PutBucketPublicAccessBlock permission. For more information about
Amazon S3 permissions, see Specifying
Permissions in a Policy in the Amazon Simple Storage Service Developer Guide.
Important
When Amazon S3 evaluates the PublicAccessBlock configuration for a bucket or an
object, it checks the PublicAccessBlock configuration for both the
bucket (or the bucket that contains the object) and the bucket owner's account.
If
the PublicAccessBlock configurations are different between the bucket
and the account, Amazon S3 uses the most restrictive combination of the bucket-level
and
account-level settings.
For more information about when Amazon S3 considers a bucket or an object public, see The Meaning of "Public" in the Amazon Simple Storage Service Developer Guide.
Requests
Syntax
PUT /<bucket-name>?publicAccessBlock HTTP/1.1 Host:<bucket-name>.s3.amazonaws.com x-amz-date:<Thu, 15 Nov 2016 00:17:21 GMT>Authorization:<authorization string>(see Authenticating Requests (AWS Signature Version 4))
Request Parameters
This operation does not use request parameters.
Request Headers
This implementation of the operation uses only request headers that are common to all operations. For more information, see Common Request Headers.
Request Elements
This operation uses the following request elements. You can enable
BlockPublicAcls, IgnorePublicAcls,
BlockPublicPolicy, and RestrictPublicBuckets in any
combination.
| Name | Description | Required |
|---|---|---|
PublicAccessBlockConfiguration |
A Type: Container Children: |
Yes |
BlockPublicAcls |
Specifies whether Amazon S3 should block public access control lists (ACLs) for this
bucket. Setting this element to
Important Enabling this setting doesn't affect existing policies or ACLs. Type: Boolean Ancestor: Valid values: |
No |
IgnorePublicAcls |
Specifies whether Amazon S3 should ignore public ACLs for this bucket. Setting this
element
to Important Enabling this setting doesn't affect the persistence of any existing ACLs and doesn't prevent new public ACLs from being set. Type: Boolean Ancestor: Valid values: |
No |
BlockPublicPolicy |
Specifies whether Amazon S3 should block public bucket policies for this bucket. Setting
this element to Important Enabling this setting doesn't affect existing bucket policies. Type: Boolean Ancestor: Valid values: |
No |
RestrictPublicBuckets |
Specifies whether Amazon S3 should restrict public bucket policies for this bucket.
If this element
is set to Important Enabling this setting doesn't affect previously stored bucket policies, except that public and cross-account access within any public bucket policy, including non-public delegation to specific accounts, is blocked. Type: Boolean Ancestor: Valid
values: |
No |
Responses
Response Headers
The operation returns response headers that are common to most responses. For more information, see Common Response Headers.
Response Elements
This operation does not return response elements.
Special Errors
This implementation of the operation does not return special errors. For general information about Amazon S3 errors and a list of error codes, see Error Responses.
Examples
First Sample Request
The following request puts a bucket PublicAccessBlock configuration that
rejects public ACLs.
PUT /<bucket-name>?publicAccessBlock HTTP/1.1 Host:<bucket-name>.s3.amazonaws.com x-amz-date:<Thu, 15 Nov 2016 00:17:21 GMT>Authorization:<signatureValue><?xml version="1.0" encoding="UTF-8"?> <PublicAccessBlockConfiguration> <BlockPublicAcls>TRUE</BlockPublicAcls> <IgnorePublicAcls>FALSE</IgnorePublicAcls> <BlockPublicPolicy>FALSE</BlockPublicPolicy> <RestrictPublicBuckets>FALSE</RestrictPublicBuckets> </PublicAccessBlockConfiguration>
First Sample Response
HTTP/1.1 200 OK x-amz-id-2: ITnGT1y4REXAMPLEPi4hklTXouTf0hccUjo0iCPEXAMPLEutBj3M7fPGlWO2SEWp x-amz-request-id: 51991EXAMPLE5321 Date: Thu, 15 Nov 2016 00:17:22 GMT Server: AmazonS3 Content-Length: 0
Second Sample Request
The following request puts a bucket PublicAccessBlock configuration that
ignores public ACLs and restricts access to public buckets.
PUT /<bucket-name>?publicAccessBlock HTTP/1.1 Host:<bucket-name>.s3.amazonaws.com x-amz-date:<Thu, 15 Nov 2016 00:17:21 GMT>Authorization:<signatureValue><?xml version="1.0" encoding="UTF-8"?> <PublicAccessBlockConfiguration> <BlockPublicAcls>FALSE</BlockPublicAcls> <IgnorePublicAcls>TRUE</IgnorePublicAcls> <BlockPublicPolicy>FALSE</BlockPublicPolicy> <RestrictPublicBuckets>TRUE</RestrictPublicBuckets> </PublicAccessBlockConfiguration>
Second Sample Response
HTTP/1.1 200 OK x-amz-id-2: ITnGT1y4REXAMPLEPi4hklTXouTf0hccUjo0iCPEXAMPLEutBj3M7fPGlWO2SEWp x-amz-request-id: 51991EXAMPLE5321 Date: Thu, 15 Nov 2016 00:17:22 GMT Server: AmazonS3 Content-Length: 0
Related Resources
-
Using Amazon S3 Block Public Access in the Amazon Simple Storage Service Developer Guide.
