CRITICAL - Plugin timed out while executing system call (DNS check)

Checked on 2 systems, CRE and CEE 1.6.0p19.
Experiencing this error. DNS check is timing out.
When I execute nslookup www.google.com on both the server and the host itself it resolves fine. The check is timing out.

Running on Ubuntu 20.04.1 LTS, fully up-to-date.

What can I do ?

Hallo,
please post the config of the check.
Ralf

Never mind, I fixed it.
I was missing a clear specification of the DNS check.

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