shell:$ nslookup -timeout=2 -retry=1 'erstst.mtn.sd'
Server:		75.98.161.224
Address:	75.98.161.224#53

Non-authoritative answer:
Name:	erstst.mtn.sd
Address: 102.181.210.70
;; communications error to 75.98.161.224#53: timed out