shell:$ nslookup -timeout=2 -retry=1 'www.ok.ru'
Server:		1.1.1.1
Address:	1.1.1.1#53

Non-authoritative answer:
Name:	www.ok.ru
Address: 5.61.23.11
Name:	www.ok.ru
Address: 217.20.155.13
Name:	www.ok.ru
Address: 217.20.147.1