server1.ee.net has no NS records.
NS records for this zone are defined at ee.net.
NS records for this zone are defined at ee.net.
Question and response
Question
dig server1.ee.net. NS
Answer
The response has no answer records.
Authority
ee.net. 86400 SOA dns4.ee.net. hostmaster.ee.net. 2017030823 210800 3600 604800 86400
Additional
. 0 OPT ; payload 1232, xrcode 0, version 0, flags 0