server2.intovps.com has no NS records.
NS records for this zone are defined at intovps.com.
NS records for this zone are defined at intovps.com.
Question and response
Question
dig server2.intovps.com. NS
Answer
The response has no answer records.
Authority
intovps.com. 1800 SOA harley.ns.cloudflare.com. dns.cloudflare.com. 2396602179 10000 2400 604800 1800
Additional
. 0 OPT ; payload 1232, xrcode 0, version 0, flags 0