ns2.derecho.uba.ar has no NS records.
NS records for this zone are defined at derecho.uba.ar.
NS records for this zone are defined at derecho.uba.ar.
Question and response
Question
dig ns2.derecho.uba.ar. NS
Answer
The response has no answer records.
Authority
derecho.uba.ar. 600 SOA ns1.derecho.uba.ar. hostmaster.derecho.uba.ar. 2026031101 3600 300 17200 43200
Additional
. 0 OPT ; payload 4096, xrcode 0, version 0, flags 0