ns4.networktechnologysolutions.com has no NS records.
NS records for this zone are defined at networktechnologysolutions.com.
NS records for this zone are defined at networktechnologysolutions.com.
Question and response
Question
dig ns4.networktechnologysolutions.com. NS
Answer
The response has no answer records.
Authority
networktechnologysolutions.com. 300 SOA ns1.networktechnologysolutions.com. support.networkts.com. 2017102501 43200 120 1209600 300
Additional
. 0 OPT ; payload 1232, xrcode 0, version 0, flags 0