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[ aws . ec2 ]



Modifies an attribute of the specified Elastic IP address. For requirements, see Using reverse DNS for email applications .

See also: AWS API Documentation

See 'aws help' for descriptions of global parameters.


--allocation-id <value>
[--domain-name <value>]
[--dry-run | --no-dry-run]
[--cli-input-json <value>]
[--generate-cli-skeleton <value>]


--allocation-id (string)

[EC2-VPC] The allocation ID.

--domain-name (string)

The domain name to modify for the IP address.

--dry-run | --no-dry-run (boolean)

Checks whether you have the required permissions for the action, without actually making the request, and provides an error response. If you have the required permissions, the error response is DryRunOperation . Otherwise, it is UnauthorizedOperation .

--cli-input-json (string) Performs service operation based on the JSON string provided. The JSON string follows the format provided by --generate-cli-skeleton. If other arguments are provided on the command line, the CLI values will override the JSON-provided values. It is not possible to pass arbitrary binary values using a JSON-provided value as the string will be taken literally.

--generate-cli-skeleton (string) Prints a JSON skeleton to standard output without sending an API request. If provided with no value or the value input, prints a sample input JSON that can be used as an argument for --cli-input-json. If provided with the value output, it validates the command inputs and returns a sample output JSON for that command.

See 'aws help' for descriptions of global parameters.



To use the following examples, you must have the AWS CLI installed and configured. See the Getting started guide in the AWS CLI User Guide for more information.

Unless otherwise stated, all examples have unix-like quotation rules. These examples will need to be adapted to your terminal's quoting rules. See Using quotation marks with strings in the AWS CLI User Guide .

To modify the domain name attribute associated with an elastic IP address

The following modify-address-attribute examples modify the domain name attribute of an elastic IP address.


aws ec2 modify-address-attribute \
    --allocation-id eipalloc-abcdef01234567890 \


aws ec2 modify-address-attribute ^
    --allocation-id eipalloc-abcdef01234567890 ^


    "Addresses": [
            "PublicIp": "",
            "AllocationId": "eipalloc-abcdef01234567890",
            "PtrRecord": ""
            "PtrRecordUpdate": {
                "Value": "",
                "Status": "PENDING"

To monitor the pending change and to view the modified attributes of an elastic IP address, see describe-addresses-attribute in the AWS CLI Command Reference.


Address -> (structure)

Information about the Elastic IP address.

PublicIp -> (string)

The public IP address.

AllocationId -> (string)

[EC2-VPC] The allocation ID.

PtrRecord -> (string)

The pointer (PTR) record for the IP address.

PtrRecordUpdate -> (structure)

The updated PTR record for the IP address.

Value -> (string)

The value for the PTR record update.

Status -> (string)

The status of the PTR record update.

Reason -> (string)

The reason for the PTR record update.