You can configure a custom DNS Server in the DHCP Options Set for the Amazon VPC that has your RDS instance. For more information, see DHCP Options Sets in the Amazon VPC documentation, and DHCP Options Set in the AWS Directory Service documentation.

Please note: If you have custom DNS configured for your VPC, the RDS instance will use it for all name resolution initiated by the instance. If your custom DNS server is unreachable or does not provide resolution for addresses used by your application, outbound network activity will fail. The DNS server must be reachable by instances in the VPC and capable of resolving DNS names used in outbound network traffic.

Your Oracle database instance needs to be in a VPC to be able to use this new feature. To move your non-VPC RDS databases to VPC, follow the instructions in the documentation.

For more information, please visit the documentation page.

Amazon Web Services Inc. published this content on 26 January 2017 and is solely responsible for the information contained herein.
Distributed by Public, unedited and unaltered, on 26 January 2017 22:39:12 UTC.

Original documenthttps://aws.amazon.com/about-aws/whats-new/2017/01/amazon-rds-for-oracle-now-supports-outbound-network-access-with-custom-dns/

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