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Question

How to assign a floating IP to reverse DNS

Posted December 7, 2016 5.6k views
DNS

It is my understanding that a reverse DNS entry should point to the server found in your A records (maybe I am off on this, and if so, feel free to let me know).

Going with that premise, I would think that digitalocean floating IP addresses should update the pointer for the reverse dns to use the floating IP instead of the droplet IP.

However, digitalocean uses the droplet IP and does not allow reassignment to the floating IP. So I have two questions:
Am I off base in my analysis here?
If I am not off base here, what is the appropriate way to get a reverse dns entry for a floating IP?

Thanks!

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terrypearsonmn
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terrypearsonmn

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9 answers
spmfox January 22, 2018

Is there any plans on revisiting this question? As far as I can tell, its almost impossible to run a legitimate email server (and expect others to accept your mail) without reverse DNS working. I’m mainly talking about cPanel here. It would be great to be able to use floating IPs for migration or DR if one server died, however without DNS I don’t see another way. Thank you.

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ryanpq December 8, 2016

Currently we do not support PTR records for floating IPs. The PTR for your droplet’s public ipv4 address is set automatically based on the name given to the droplet (if the name is a fully qualified domain or subdomain name).

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sburina May 4, 2018

What about IPv6 addresses? How do we set reverse records for those?

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slavaK October 9, 2018

+1 to this request, please

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arnaugalofre November 11, 2018

+1

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jamiemcnaught January 18, 2019
[deleted]
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slavaK January 28, 2019

+1

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cansonat May 16, 2019

I am having the same issue. Any solutions?

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isaac185714 June 6, 2019

I agree. I am (or was) looking for alternatives to move from bluehost VPS, in part because of email deliverability and their issue with DKIM records. Now that I have SPF, DKIM and even DMARC set up, gmail still spams the server outbound emails because of the rDNS issue with floating IPs. Pretty much every server I run sends out email, and some are web stores. Makes little sense to move if I server mail doesn’t get to the users. A large reason for this was not to force my clients to use some other mail alternative for simple server messages.

So, another +1

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