shell:$ nslookup -timeout=2 -retry=1 'omammsc.uplus.co.kr'
Server:		1.1.1.1
Address:	1.1.1.1#53

Non-authoritative answer:
Name:	omammsc.uplus.co.kr
Address: 192.168.230.14
Name:	omammsc.uplus.co.kr
Address: 2001:4430:8000:20:0:1:0:1