shell:$ nslookup -timeout=2 -retry=1 'alt2aspmxlgoogle.com' Server: 1.1.1.1 Address: 1.1.1.1#53 Non-authoritative answer: Name: alt2aspmxlgoogle.com Address: 209.85.202.27 Name: alt2aspmxlgoogle.com Address: 2a00:1450:400b:c00::1b