ns02.saofrancisco.edu.br has no NS records.
NS records for this zone are defined at saofrancisco.edu.br.
NS records for this zone are defined at saofrancisco.edu.br.
Question and response
Question
dig ns02.saofrancisco.edu.br. NS
Answer
The response has no answer records.
Authority
saofrancisco.edu.br. 300 SOA ns1-04.azure-dns.com. azuredns-hostmaster.microsoft.com. 1 3600 300 2419200 300
Additional
. 0 OPT ; payload 1232, xrcode 0, version 0, flags 0