gw-esx.ihsystem.com has no NS records.
NS records for this zone are defined at ihsystem.com.
NS records for this zone are defined at ihsystem.com.
Question and response
Question
dig gw-esx.ihsystem.com. NS
Answer
The response has no answer records.
Authority
ihsystem.com. 800 SOA ns1.ihsystem.com. ns2.ihsystem.com. 2026012305 172800 3600 1728000 172800
Additional
. 0 OPT ; payload 2800, xrcode 0, version 0, flags 0