shell:$ nslookup -timeout=2 -retry=1 'sswan.cpe.rmutt.ac.th'
Server:		1.1.1.1
Address:	1.1.1.1#53

Non-authoritative answer:
Name:	sswan.cpe.rmutt.ac.th
Address: 203.158.118.30
Name:	sswan.cpe.rmutt.ac.th
Address: 2001:3c8:e10e:118:250:56ff:feaf:590d