host234-47-rf.serrageral.net.br has no NS records.
NS records for this zone are defined at serrageral.net.br.
NS records for this zone are defined at serrageral.net.br.
Question and response
Question
dig host234-47-rf.serrageral.net.br. NS
Answer
The response has no answer records.
Authority
serrageral.net.br. 1800 SOA denver.ns.cloudflare.com. dns.cloudflare.com. 2399576959 10000 2400 604800 1800
Additional
. 0 OPT ; payload 1232, xrcode 0, version 0, flags 0