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I'm developing a restful API as a fun challenge. For that, I've got a server running on AWS and also a custom domain registered as I would like to use it as the address for my API calls.

I've been following this guide on youtube to use my custom domain name on my API: https://youtu.be/LUFn-QVcmB8?t=927 By 15:27 he mentions the need to set up a reverse DNS on the server, but I can't find that option on AWS ec2.

RDNS on ec2 doesn't seem to be as straightforward as in the video, and I couldn't guide myself through the explanations I've found as I don't have any knowledge of networking configuration. Does anyone know the steps I need to follow to configure rDNS on my instance?

Arthur Coimbra
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You don't configure reverse DNS on an instance, but for an IP address. You must have given your instance a persistent Elastic IP address, and then you can request Amazon to set reverse DNS for that IP address.

Michael Hampton
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