mail.unisa.com.pe has no NS records.
NS records for this zone are defined at unisa.com.pe.
NS records for this zone are defined at unisa.com.pe.
Question and response
Question
dig mail.unisa.com.pe. NS
Answer
The response has no answer records.
Authority
unisa.com.pe. 3600 SOA ns1.opticalip.com.pe. hostmaster.opticalip.com.pe. 2025070700 43200 3600 1209600 3600
Additional
. 0 OPT ; payload 4096, xrcode 0, version 0, flags 0