How to configure the reverse DNS of a flexible IP on Elastic Metal servers
Reverse DNS, or rDNS, is exactly the opposite of classic forward DNS as we know it. Forward DNS maps a hostname to an IP address. Reverse DNS means we are mapping the IP address to a hostname. This can be very useful, especially if you want to send emails from your Elastic Metal server.
- Click Elastic Metal in the Bare Metal section of the Scaleway console side menu. The Elastic Metal dashboard displays.
- Click the Flexible IPs tab.
- Click «See more Icon» next to the flexible IP you want to configure. The configuration menu of the flexible IP displays.
- Click More info to see detailed information about the IP address.
- Scroll down to the Reverse section and click on Add reverse.
If a reverse DNS is already set on your failover IP, the button is labeled Edit reverse.
- Enter the new reverse DNS and click Edit reverse to validate the changes.
When configuring the reverse DNS for a flexible IPv6, the configuration applies to the first IP (
XXXX:0) of the /64 IP block.
Make sure that a corresponding
A-Record (IPv4) or
AAAA-Record (IPv6) is pointing to the IP address exists before editing the reverse DNS of an IP address.