How to configure reverse DNS of an Instance

Reverse DNS is the opposite of classic “forward” DNS and maps an IP address to a hostname. This can be useful if, for example, you want to send emails from your server.

Before you startLink to this anchor

To complete the actions presented below, you must have:

• A Scaleway account logged into theconsole
• Owner status orIAM permissions allowing you to perform actions in the intended Organization
• AnInstance with its public (flexible) IP address attached to it
• Configured a matching A-record pointing to your IP address. Note that if you have created the A record recently, it may take up to 24 hours for the operation to be completed.

How to set up a reverse DNS recordLink to this anchor

1. Click CPU Instances in the Compute section of the side menu. TheInstances pagedisplays.
2. Click the Flexible IPs tab.
3. Click the «See more Icon»icon next to the IP address you wish to configure reverse DNS for and select Edit reverse from the drop-down menu.
4. Enter the reverse DNS you want to associate with the IP address. Generally this corresponds to your hostname.
5. Click Edit reverse to finish.
   Note

   Once the reverse DNS has been updated, it may take up to 24 hours before it is fully propagated.