Unable to add an IP address without a subnet mask in Zone Transfers of a domain in Plesk when BIND DNS Server is used

Symptoms

• Unable to add an IP address without a subnet mask at Domains > example.com > DNS Settings > Zone Transfers. The following error appears in Plesk:

  PLESK_ERROR: ‘203.0.113.2’ does not appear to be a valid IP address or it belongs to a wrong type.

• BIND DNS server is selected as a DNS server at Plesk > Tools & Settings > Server Components > DNS Server.

Cause

This is a Plesk bug with ID PPPM-7892, which is planned to be fixed in future product updates.

Resolution

As a workaround, add the IP address via a command-line interface:

1. Connect to the Plesk server via RDP.

2. Start a command prompt as an Administrator and run the command below:

   C:> plesk bin dns -a example.com -axfr 203.0.113.2
   SUCCESS: Creation of DNS record in Domain ‘example.com’ complete.

   where:

   • example.com – a domain name
   • 203.0.113.2 – an IP address of a DNS server allowed to receive a copy of the DNS zone