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Question

PTR record for IPv6?

Posted November 9, 2018 2.9k views
DNSIPv6Ubuntu 18.04

Hello , i configure my PTR record to my ip4 but i dont see the same for my ipv6.
i change my /etc/hosts parametrer.

change my sudo nano /etc/network/interfaces
iface eth0 inet6 static
address primaryipv6address
netmask 64
gateway ipv6_gateway
autoconf 0
dns-nameservers 2001:4860:4860::8844 2001:4860:4860::8888 209.244.0.3

But nothing happend ? what i miss ?

Thx

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jobuu
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jobuu

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3 answers
alexdo December 13, 2019

Hello, @jobuu

The Reverse DNS for the IPv4 is configured automatically from our end based on the droplet’s hostname.

The support for PTR records for IPv6 addresses was actually added a while back. By default, the each Droplet with IPv6 enabled will be configured with a single IPv6 address. This is the address that will be used for any PTR records that will be generated for domains pointing at your server. Like with IPv4, if the hostname given to the Droplet is a FQDN, the PTR record will be generated automatically.

Regards,
Alex

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jobuu December 13, 2019

Ty alex!

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avallee June 8, 2021

To set the PTR for the IPv6 address:

All you need to do is temporarily change the name (Domain) of your droplet to something other than what it was set to when you enabled IPv6.

Then wait 1 minute, and change it back to the Domain Name you originally set it to before adding IPv6.

For example:

My domain was set to ser1.example.com.
I enabled IPv6.
I would change the domain to temp.example.com.
Wait 1 minute.
Then Change the domain back to ser1.example.com.

I hope that this finally resolves your issue.

Sincerely,
Adam

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