Error is returned during the DNS Settings customization: Error: dnsmng failed: dnsmng: Could not start named-checkconf

kb: bug

Symptoms

The following error is returned when customizing the global DNS Configuration at Tools & Settings > DNS Settings:

dnsmng failed: dnsmng: Could not start named-checkconf
System error 2: No such file or directory
When manually adjusting the DNS records via Domains > example.com > Hosting and DNS > DNS Settings, upon pressing Update button, Plesk is redirected to Tools & Settings page with the Warning:

Permission denied.

The following error is triggered in the /var/log/syslog:

Jul 25 22:04:17 hostname.com named[926361]: couldn't mkdir '//run': Permission denied
Jul 25 22:04:17 hostname.com named[926361]: could not create //run/named/session.key
Jul 25 22:04:17 hostname.com named[926361]: failed to generate session key for dynamic DNS: permission denied

There is no session.key in /run/named/, yet the permissions are correct (compared with test).
Also other errors reported:

dnsmng failed: Fatal error: boost::process::process_error(execve failed: No such file or directory)

named-checkconf and named-checkzone are not available in /usr/sbin/.

This has been reported as bug ID PPPM-14510.

Update Plesk to version 18.0.62.2 by following this article How to update Plesk Obsidian to the latest build? If for some reason an update is not preferred:

Connect to the server via SSH
Create a symlink:

# ln -s /usr/bin/named-checkconf /usr/sbin/named-checkconf
# ln -s /usr/bin/named-checkzone /usr/sbin/named-checkzone
Customize configuration in Tools & Settings > DNS Settings.