Reverse DNS allows you to resolve a public IP address into a hostname (FQDN, Fully Qualified Domain Name), ensuring the match between the IP address and the associated domain. This configuration is useful to improve the reliability of outgoing communications, especially for services like email.
- Sign in to th Control Panel;
- from the menu, select Public Cloud > COMPUTE > Cloud Servers > Network > Public IPs;
- in the Public IPs section, find the public IP and click on DETAILS;
- on the details page, select the option Edit (Manage Reverse) located under the name of the public IP;
- in the Reverse DNS section, click on Add hostname;
- in the field Hostname 1, enter the domain name;
- you can add multiple domain names;
- confirm the operation by clicking the SAVE CHANGES button;
- in the Confirmation window, confirm the action by clicking CONFIRM CHANGES;
- to remove a hostname linked to a public IP, just click the related DELETE button.
Changes may take up to 48 hours to be applied.