no.rdns.greencloudvps.com has no NS records.
NS records for this zone are defined at greencloudvps.com.
NS records for this zone are defined at greencloudvps.com.
Question and response
Question
dig no.rdns.greencloudvps.com. NS
Answer
The response has no answer records.
Authority
greencloudvps.com. 1800 SOA arya.ns.cloudflare.com. dns.cloudflare.com. 2398876204 10000 2400 604800 1800
Additional
. 0 OPT ; payload 1232, xrcode 0, version 0, flags 0