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AWS::EC2::Subnet PrivateDnsNameOptionsOnLaunch
Specifies the options for instance hostnames.
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 hostname with DNS AAAA records.
Required: No
Type: Boolean
Update requires: No interruption
EnableResourceNameDnsARecord-
Indicates whether to respond to DNS queries for instance hostnames with DNS A records.
Required: No
Type: Boolean
Update requires: No interruption
HostnameType-
The type of hostname for EC2 instances. 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.
Required: No
Type: String
Allowed values:
ip-name | resource-nameUpdate requires: No interruption
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