```
vyos@vyos:~$ show ntp
ntpq: read: Connection refused
vyos@vyos:~$ show ntp info
ntpq: read: Connection refused
ntpq: read: Connection refused
vyos@vyos:~$ show ntp server 0.de.pool.ntp.org
Exiting, name server cannot be used: Temporary failure in name resolution (-3)20 Mar 13:23:46 ntpdate[7409]: name server cannot be used: Temporary failure in name resolution (-3)
```
To reproduce:
```
set system ntp listen-address '1192.0.2.41'
set system ntp listen-address '2001:db8::41'
set system ntp server 0.de.pool.ntp.org prefer
set system ntp vrf 'MGMT'
```