Help us understand the problem. What is going on with this article?

Cannot create a RDS Readreplicaが作成できない。(publicly accessible DBInstance because customer VPC does not support DNS resolution and/or hostnames. )

More than 5 years have passed since last update.

RDS readreplicaを作成できないとき

Cannot create a publicly accessible DBInstance because customer VPC does not support DNS resolution and/or hostnames. (Service: AmazonRDS; Status Code: 400; Error Code: InvalidVPCNetworkStateFault; Request ID: xxxxxxx-yyyy-zzzz-aaaa-bbbbbbbbbbbbb)

Readreplicaの作成時にこんなエラーメッセージがでた場合は、VPCの設定で DNSホスト名が "いいえ"になっている可能性があるため確認する。

VPC > VPCの一覧 > VPCを選択し、「VPCホスト名の編集」

"いいえ"になっていたら"はい"に変更。
Master側、RR側の両方を確認する。

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