shell:$ nslookup -timeout=2 -retry=1 'ns-sd.afrinic.net'
Server:		1.1.1.1
Address:	1.1.1.1#53

Non-authoritative answer:
Name:	ns-sd.afrinic.net
Address: 196.216.168.26
Name:	ns-sd.afrinic.net
Address: 2001:43f8:120::26