vportal.dsscorp.com has no NS records.
NS records for this zone are defined at dsscorp.com.
NS records for this zone are defined at dsscorp.com.
Question and response
Question
dig vportal.dsscorp.com. NS
Answer
The response has no answer records.
Authority
dsscorp.com. 300 SOA ns1-32.azure-dns.com. azuredns-hostmaster.microsoft.com. 1 3600 300 2419200 300
Additional
. 0 OPT ; payload 1232, xrcode 0, version 0, flags 0