gis.coolnet.ps has no NS records.
NS records for this zone are defined at coolnet.ps.
NS records for this zone are defined at coolnet.ps.
Question and response
Question
dig gis.coolnet.ps. NS
Answer
The response has no answer records.
Authority
coolnet.ps. 38400 SOA dns1.alami.net. root.alami.net. 1216196217 10800 3600 1209600 38400
Additional
. 0 OPT ; payload 4000, xrcode 0, version 0, flags 0