shell:$ nslookup -timeout=2 -retry=1 'ao.pool.ntp.org'
Server: 127.0.0.53
Address: 127.0.0.53#53
Non-authoritative answer:
Name: ao.pool.ntp.org
Address: 162.159.200.123
Name: ao.pool.ntp.org
Address: 162.159.200.1
Name: ao.pool.ntp.org
Address: 196.49.6.67
| 