shell:$ nslookup -timeout=2 -retry=1 'asia.pool.ntp.org'
Server:		1.1.1.1
Address:	1.1.1.1#53

Non-authoritative answer:
Name:	asia.pool.ntp.org
Address: 208.88.66.8
Name:	asia.pool.ntp.org
Address: 103.186.118.211
Name:	asia.pool.ntp.org
Address: 139.199.215.251
Name:	asia.pool.ntp.org
Address: 103.186.118.219