A PTR record, also known as Reverse DNS or rDNS, maps an IP address back to a hostname
You can configure Reverse DNS individually for the IP addresses assigned to your Ozonti Cloud Server directly from the Client Area
192.0.2.20server.example.comSign in to your Ozonti Client Area using your account credentials
Navigate to your active services and open the Cloud Server you want to manage
Select the Cloud Server containing the IPv4 or IPv6 address for which you want to configure Reverse DNS
Make sure you are managing the correct server before changing the PTR record
From the Cloud Server management page, open the Network section
This section displays the network addresses currently assigned to your Cloud Server
Locate the IP address for which you want to configure Reverse DNS
If your Cloud Server has additional IP addresses, make sure you select the specific IP address you want to modify
192.0.2.20Locate the Reverse DNS or PTR option for the selected IP address
Enter the fully qualified domain name that you want the IP address to resolve to
192.0.2.20 server.example.comserver.example.comhttp://, https://, an IP address, a port number, or a URL pathSave the Reverse DNS configuration
Once the change has been applied, the selected Cloud Server IP address should resolve back to the hostname you configured
After configuring Reverse DNS, you can verify the PTR record from your computer
dig -x 192.0.2.20The result should return the hostname configured for the IP address
20.2.0.192.in-addr.arpa. PTR server.example.comnslookup 192.0.2.20If your Cloud Server is being used as a mail server, the hostname configured in the PTR record should also resolve back to the same server IP address
| Record | Configuration |
|---|---|
| A Record | mail.example.com → 192.0.2.20 |
| PTR Record | 192.0.2.20 → mail.example.com |
If you are unable to configure Reverse DNS for your Cloud Server, please open a support ticket and provide the following information
Our support team will review the configuration and assist you