shell:$ nslookup -timeout=2 -retry=1 'ppp-223-24-181-59.revip6.asianet.co.th' Server: 1.1.1.1 Address: 1.1.1.1#53 Non-authoritative answer: Name: ppp-223-24-181-59.revip6.asianet.co.th Address: 223.24.181.59