To make the Plesk's DNS server act as a primary back, perform the following steps:
1 - 1 - Logged in to Plesk, https://your domain name:8443.
2 - Go to Websites & Domains and click the domain name whose DNS settings you want to manage.
3 - Click DNS Settings.
4 - Click Master/Slave to switch DNS server mode.
The original resource records for the zone will be restored.
