pfsense.esvacloud.com has no NS records.
NS records for this zone are defined at esvacloud.com.
NS records for this zone are defined at esvacloud.com.
Question and response
Question
dig pfsense.esvacloud.com. NS
Answer
The response has no answer records.
Authority
esvacloud.com. 1800 SOA clark.ns.cloudflare.com. dns.cloudflare.com. 2397875944 10000 2400 604800 1800
Additional
. 0 OPT ; payload 1232, xrcode 0, version 0, flags 0