shell:$ nslookup -timeout=2 -retry=1 'debian.pool.ntp.org'
Server:		127.0.0.53
Address:	127.0.0.53#53

Non-authoritative answer:
Name:	debian.pool.ntp.org
Address: 147.189.136.126
Name:	debian.pool.ntp.org
Address: 76.10.149.44
Name:	debian.pool.ntp.org
Address: 142.4.192.253
Name:	debian.pool.ntp.org
Address: 148.113.173.205