shell:$ nslookup -timeout=2 -retry=1 'ciam.telkomsel.com'
Server: 75.98.161.224
Address: 75.98.161.224#53
Non-authoritative answer:
ciam.telkomsel.com canonical name = ciam.dctc.telkomsel.com.
Name: ciam.dctc.telkomsel.com
Address: 43.255.196.191
;; Got SERVFAIL reply from 75.98.161.224, trying next server
;; Got SERVFAIL reply from 69.39.86.5
** server can't find ciam.dctc.telkomsel.com: SERVFAIL
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