10.3 Set up Reverse DNS on a Public IP

After purchasing a new Public IP (or even by using your existing IPs) you can set up the Reverse DNS service.
Reverse DNS allows you to resolve a Public IP address to a host (FQDN): this ensures  the Public IP address and the setup domain correspond.

Proceed as follows:

• click "Details" of the Public IP;
  
  
• a window related to the selected Public IP will open;
  
  
• click "Edit";
  
  
• then on the "Add hostname" button found in the "Reverse DNS" section;
  
  
• in the "Hostmane 1" box enter a domain name ; it’s possible to enter multiple hostnames associated with one Public IP using the "Add hostname" button;
  
  
• confirm the operation by clicking "Save and Apply";
• a message will appear to confirm the operation informing you how long it will take to apply your changes, click "OK".
  
  
• Once the changes are applied the status of the Public IP will change also in the initial page. The rDNS column will display "YES".
  
  
• To remove a hostname associated with a Public IP the process is the same: simply remove the value from the "Reverse DNS" section.