shell:$ nslookup -timeout=2 -retry=1 'zzzb.com' Server: 127.0.0.53 Address: 127.0.0.53#53 Non-authoritative answer: zzzb.com canonical name = vg7.pfw.rfznpudap.cloudland3.com. Name: vg7.pfw.rfznpudap.cloudland3.com Address: 20.2.205.42