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AWS::EC2::Instance PrivateDnsNameOptions
The type of hostnames to assign to instances in the subnet at launch. For IPv4 only subnets, an instance DNS name must be based on the instance IPv4 address. For IPv6 only subnets, an instance DNS name must be based on the instance ID. For dual-stack subnets, you can specify whether DNS names use the instance IPv4 address or the instance ID. For more information, see Amazon EC2 instance hostname types in the Amazon Elastic Compute Cloud User Guide.
Syntax
To declare this entity in your CloudFormation template, use the following syntax:
JSON
{ "EnableResourceNameDnsAAAARecord" :Boolean, "EnableResourceNameDnsARecord" :Boolean, "HostnameType" :String}
YAML
EnableResourceNameDnsAAAARecord:BooleanEnableResourceNameDnsARecord:BooleanHostnameType:String
Properties
EnableResourceNameDnsAAAARecord-
Indicates whether to respond to DNS queries for instance hostnames with DNS AAAA records. For more information, see Amazon EC2 instance hostname types in the Amazon Elastic Compute Cloud User Guide.
Required: No
Type: Boolean
Update requires: Some interruptions
EnableResourceNameDnsARecord-
Indicates whether to respond to DNS queries for instance hostnames with DNS A records. For more information, see Amazon EC2 instance hostname types in the Amazon Elastic Compute Cloud User Guide.
Required: No
Type: Boolean
Update requires: Some interruptions
HostnameType-
The type of hostnames to assign to instances in the subnet at launch. For IPv4 only subnets, an instance DNS name must be based on the instance IPv4 address. For IPv6 only subnets, an instance DNS name must be based on the instance ID. For dual-stack subnets, you can specify whether DNS names use the instance IPv4 address or the instance ID. For more information, see Amazon EC2 instance hostname types in the Amazon Elastic Compute Cloud User Guide.
Required: No
Type: String
Allowed values:
ip-name | resource-nameUpdate requires: Some interruptions
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