Plesk Without a DNS Server

You can exclude the DNS server component from your Plesk installation.
To do this, use the custom type of installation (refer to the
Deployment
guide
for details) and deselect the corresponding component (BIND DNS server
support on Linux and Microsoft DNS server on Windows).

If you do this and do not connect an external DNS service, Plesk does
not provide the DNS service for websites hosted on it. Additionally, the
following changes in Plesk behavior take place:

• The DNS Template link is not displayed on the Tools &
  Settings page of the Server Administration Panel.
• In the Customer Panel, the link DNS Settings in Websites &
  Domains > <domain_name> is replaced with the link Whois
  Information, which opens a page with the information about the
  domain name registration.
• Plesk users are unable to install web applications that require DNS
  zone management permission (or DNS aspect).
• Plesk returns errors on attempts to manage its DNS server or DNS
  zones by means of the command line utility dns or XML API
  requests with <dns> nodes.