shell:$ nslookup -timeout=2 -retry=1 'www.dtacnet.co.th'
Server:		127.0.0.53
Address:	127.0.0.53#53

Non-authoritative answer:
www.dtacnet.co.th	canonical name = dtacnet.co.th.
Name:	dtacnet.co.th
Address: 172.96.191.227