dns2.silverstar.com has no NS records.
NS records for this zone are defined at silverstar.com.
NS records for this zone are defined at silverstar.com.
Question and response
Question
dig dns2.silverstar.com. NS
Answer
The response has no answer records.
Authority
silverstar.com. 900 SOA dns0.silverstar.com. noc.silverstar.com. 2026022001 10800 3600 604800 900
Additional
. 0 OPT ; payload 1232, xrcode 0, version 0, flags 0