How to set PTR record for reverse DNS

[roginovicci]

What is the name of the domain?

irreps.cc

What is the issue you’re encountering

Lets say I have an VPS server with ip adress 111.222.333.4 which registered in Cloudflare as example.com. I followed instruction to set reverse dns for mail.example.com by creating new zone 333.222.111.in-addr.arpa, then I added PTR record with name: 4 and Domain name: mail.example.com. But dashboard show that 333.222.111.in-addr.arpa is not active on Cloudflare yet. Instructions say I’ve got to contact with domain registrar. I think the registrar is Cloudflare, if so where should I put request?

What feature, service or problem is this related to?

DNS records

[fritex]

@roginovicci

I have an VPS server with ip adress 111.222.333.4

PTR, the reverse name should be set on the host/origin server itself via /etc/hosts/ and /etc/hostname. Therefrom, the hosting provider should have an interface where you can also set the hostname for the IP address of the VPS/server.

Helpful posts:

How EXACTLY to add an email PTR Record?

You can only create reverse records if you are the actual owner of the IP block. If your host owns the IP, you need to create the reverse record in their menu. If you actually own the IP, you can follow the instructions given here:

PTR record on Cloudflare?

You have nothing. A PTR record in a forward zone is only a written record of a user error. It cannot even be queried. PTR records live in the in-addr.arpa. and ip6.arpa. zones. Your domain is not a child of those zones and can never be consulted for the misplaced PTR record that you have created. If you need have a PTR for your IP, your host must set it. If they won’t, you can either find a new host or do without a PTR. You cannot simply shove one into your forward zone and expect it to magica…

[roginovicci]

Thank you so much for explanation. Now it’s very clear.