- Plesk Onyx for Linux
When creating a new domain alias (In this example, domain alias example.net for example.com ), the operation fails with the following error message in Plesk:
PLESK_ERROR: Error: Unable to add the ipv4.example.net. IN A 203.0.113.2 record to zone example.net: DNS record already exists.
There are one or more duplicate DNS entries for example.com that point to the same IP address (In this example, 203.0.113.2 ) at Domains > example.com > DNS Settings.
The domain, for which a domain alias is created, contains duplicate DNS record(s).
In Plesk, go to Domains > example.com > DNS Settings.
Select the duplicate DNS entries and click Remove.
On the next page, click Update to apply the changes.