ns2.avirahost.com.br has no NS records.
NS records for this zone are defined at avirahost.com.br.
NS records for this zone are defined at avirahost.com.br.
Question and response
Question
dig ns2.avirahost.com.br. NS
Answer
The response has no answer records.
Authority
avirahost.com.br. 1800 SOA june.ns.cloudflare.com. dns.cloudflare.com. 2398909487 10000 2400 604800 1800
Additional
. 0 OPT ; payload 1232, xrcode 0, version 0, flags 0